If a wing or catastrophic failure occurred during aeros, I suspect G would prevent me from getting out. I am not going to jump out if I have an engine failure. The only reason i would jump would be if I was on fire!
You may suspect right, but possibly wrong also - and you'd be a bit sick sat there waiting. What about locked controls, a spin that won't recover for some reason, etc.
There's a true story out there about some chap in a yak that had a wing failure, and lived by approaching inverted and rolling out at the last moment. Fairly sure he'd have jumped given the option.
I guess that's what I can't fathom.. we're almost always taught to have a plan B (and possibly C) in aviation.. so why limit your options?