What he is talking about, and what has been complained about before, is the fact that even with a few MG hits the Boson (and I have heard complaints regarding the A20) will explode. Recently was fooling around in an MG only HTH room. Had some fun with SBD vs Ju87, but then tried Boston. It's okay as a platform, but you get all these BS instant deaths. I come in on a Ju88 and I get 3 pilot wounds in the process (no hits going to the cockpit!). I fly it and fight in it for a while, and odd hits from ANY angle will kill. In a HO pass where I ***only*** hit Ik3's port wing and engine, he blew up from a pilot kill. In strange fuselage hits (from any angle, any quarter) you will die from an instant pilot kill.
That's what Ik3 is referring to.