The reason we are getting good enough to call pre is because it's 17%. So even if we are struggling to realise our equity postflop that's completely fine because we don't need to realise it all.
Ok. I certainly have less of a problem pre flop than post flop.

You're also wrong in the fact that such short stacks actually help us realise our equity because we GII so often.
We're not planing on getting it in with a pair, are we? How often are we really geting it in here? How often are we drawing when we do?

If you're playing really badly postflop and just folding unless you hit 688 then that's the problem not the call pre.
Obviously not. I'm more than happy to call this pre when eff stacks are deeper, but against a short stack that we cover by 8bb I just think it's optimistic. But like I say, I could be wrong to fold pre.

The big mistake that the player can make is folding to such a small raise when we are so short and it's so easy to realise equity, something that is probably reasonably common given it sounds like you do the same.
He's not folding once he cbets flop, and neither am I. I fold oop pre, not ip post.

You're also probably playing this spot far too passively if you're calling so much OOP with such short stacks.
On the contrary, I think you're playing these spots too aggresively. I don't have a c/r range here. He doesn't have many draws, and I want my range to be balanced. For sure I'm gonna c/c a set here, and I've no problem doing so with AT too.

I'd actually be delighted to see a bet of this size, because if he potted we'd be forced to fold. This is the problem with calling hands like 86s pre oop vs a 20b shortstack.. it's much easier for villain to price us out of our draws.

I think the issue you're having is overvaluing your tournament life so far away from the money, it's higher variance but much higher EV.
It's not about my tournament life, it's about implied odds. If we're both sat here with 70bb stacks, I'm more likely to put money into the pot, because I actually have fold equity and implied odds.

The long and short of it is the person who is probably better than us both at tournaments (bean) thinks it's good. I'm more than happy to listen to anyone who wants to tell me it's bad if they give their reasons.
I'm way better at MTTs than cash games, especialy longer blind formats. Of course if this is a turbo, then call pre and c/jam flop, no problem. But when we have 20 minutes per blind level, we don't have to hurry, we can aford to pick our spots. This isn't a good one imo, not to try and push a shortstack utg of his hand when we actually have the odds to call profitatbly.