So you're advocating that he do a maneuver that will lead to his death 10% of the time, vs. an extension that will lead to his death 0% of the time? 
The 190 pilots who can consistently outscissor a Spitfire are gods for whom I have the highest respect. I've done it successfully and unsuccessfully, but criticizing someone for not attempting it when extending is the better choice doesn't make sense. There are many occasions when a scissor maneuver will lead to death less often than trying to run away. That's the moment to practice it and learn it.
Yenny also knows his acm. You should have seen him in the 109G-14 against P-51Ds during last week's SnapShot.
Yes.. I'm saying fight every fight that is a 1 on 1 or even 3 on 1, no matter if you think you will lose or win. Lives aren't free but they only cost $14.99 a month and are unlimited. Every single fight is a chance to learn something and you will learn the most by putting your self in a tough situations. I don't care who you are or how long you have played, there is always more to learn if you challenge yourself. The people that don't challenge themselves and engage fights with odds against them, will never reach their full potential. Same with guys that only fly the same plane over and over and over.
Think of it like this.. so you run from the spit.. sure you lived, but what did you learn from it? If you are serious about being as good as you can be in this game you will always challenge yourself.
I'll post two recent films from the DA.. I was flying the P40's trying to learn it, I'm getting better but IMO I still suck in it.
First film is me in a p40 and Dazycutr in a spit5. This was my first time in a P40 in months, I was so noobish when picking it I grabbed the one with no wep.

I first ran into a F4U got a few rounds in him and he dove to the deck. I didn't follow because I saw the spit coming, the F4U crashes for what ever reason.
P40 vs Spit 5 FilmWith the spit I figured I had a good chance of killing him, I actually like to fight spits because they are one of the easiest planes to rip to shreds once you get your guns on them. They turn good but I'm dumb and always think I can beat them no matter what I'm flying..lol
I'll say straight up I'll often let a con get on my six just to see if I can shake him. In this fight I didn't intend for him to get on me like he was @ 2:30. That was total dumbness on my part and not being used to the p40. Overall, I think I made several mistakes in this one mostly stalling the plane which eventually caused me to auger. I think I would have won this fight and I think Dazy made a few mistakes and should have killed me much earlier but it was a good fight none the less. My biggest mistake was getting too eager for that kill because I saw it coming and I augured like a 2 week noob. Smack me in the head and call me a dumbaruse because I totally blew it. However I still learned a lot and had a fun fight.
Second is me in a p40 vs a huri 2. I know going into this fight I don't have a very good chance in winning I mean lets face it, anyone can turn in a hurricane and there was 2 of them close by. If it's a decant stick the planes are hard to beat in a turn fight, so why not jump in for a challenge? I lost but I put up a hell of a fight IMO but I leaned from my mistakes. I didn't get killed because I was in a P40 and he was in a H2. I was killed because I made mistakes.
P40 vs Hurricane 2 FilmRight off the start I screwed up and put the plane into a stall and lost most of my alt like a dumb 2 week noob. I'm new to the plane, and it was just my dumb mistake. Second mistake I made is what set me up to get killed and was at 2:39, I turned right when I should have followed him around to the left. I saw him turn the other way and I didn't follow.. Totally dumb mistake on my part and I paid for it in the next set of turns by dieing. The other mistake I made was turning back to him after I made that mistake. I should have nosed down and built a tab bit of speed before turning back to him.
I have to say in this fight, I saw all those red cons all over the place 10 of them if you count them in the film. I was totally amazed that they all didn't dive in for the easy cherry pick kills. Only 2 of them did and one augured. so Hat's off to the other ones whom let the fight go on.. (Maybe there is hope after all)