Well, we're going in circles here. 
Following your own argument, the "statistics card", the first plane to be perked on that account would be the D-Pony. Look at Lusche's chart, no other plane comes close. You cannot make this argument without going through the 51D first.
Ok maybe you want performance to be a criteria not usage. The La7 is good at low alts no doubt about that. But why draw the line at the La7 only? What does it make worthy of perking but not the 109K4?
My point is that "i don't like it" is not a good enough reason to needlessly trespass on the diversity of planes in the game. Perking (even if done mildly) axes its usage (see: F4U1C). So what trait makes the Lala stick out? Where is the bar and what are the objective criteria?
Well that is the whole point. "This thread is not about a popularity contest." We're not going around in circles, you're failing to see the real point. This thread didn't start off taking about the Pony "D". Someone else brought it up in a side bar conversation. So, whether HT should reevaluate every hot LW ride is really not my concern. I am talking about one based on it's closest peer group, perked and unperked. Besides, why would you perk the K-4 when maybe 8 to 9 percent of the players really know how to fly it. That's like perking the Spit XIV.

The Germans during the war didn't fly it as creatively as some of these guys. You not liking it is great! That is what diversity is all about, difference in opinions, values, cultures and general understanding of the same subjects. What I do fail to see is any mention of the point of La-7s defending against current carrier borne aircraft other than the PERKED 4-Hog... The only leviathan that cometh from the sea. Flying an La-7 is fairly close, or at least in the same yard as Spit XVI. The relative ease of use, speed, and maneuverability are different but close. The low speed handling characterizes of the La-7 and firepower make it a terror that deserves the respect of a perk.
Final point, one does not capture a base from 10k and above. So eliminating all of the other circumstances and factors that were previously mentioned...
"Perk it!"