LSM are good and polished? Is that why they all have this weird second delay before any actions are taken and if you move as soon as you get control back, you don't get your execution bonuses?

Lsm are more polished than some races. Need we mention the issues of orks and eldar?

Have to agree that executions feel rushed now.
The "hold E" idea sounds good, and to prevent execute spam abuse just give executions a 10 sec cooldown (timer starting at the begin of the animation). That's enough to bleed out if you want.

Great so if I kill 2 people I only can execute one. How about when you hit the execute button you get locked into it, don't execute if you aren't fine with the potential "oh god my face" situation you throw yourself in.

By the time you execute one, the other will have bleed himself out

1) No matter how thoroughly you look, there might still be some undetected enemy that attacks you while executing and anyone on the executing side would immediately shift priorities. Playerchars can't. Tunnelvision, I guess? Right now the only way of saving a person getting executed is to kill the executor. If a "hold E" mechanic was in place, scaring then would suffice.
2) Then let the completion of a execution quit the cooldown. Mostly the time is enough for the second dude to bleed out anyway, so I don't see your problem in the first place.
3) "Hold E to execute" might solve the problem of executing an enemy while wanting to revive a teammate next to the hostile guy.

Why should an execute be nonpunishable? If you don't feel safe in the area you are in just shoot the guy in the head/grenade and move on. If you are really worried it's not like they force you to execute but that you want to have a bonus with no downside.

I agree with this, though to me, it looks more like they're shooting them in the crotch than the knee

Because getting repeatedly blasted in the face while you take your sweet time knifing someone in the chest, then slowly put your knife away is a bit silly?

Aesthetic wise, it looks stupid (being shot repeatedly).
Gameplay wise, it's infuriating.

@JojoKasei and I and several others are taking some good effort making suggestions to make executions better for everyone. What are you doing? You're just shooting down ideas and putting nothing forward.

What is it then? You think execution mechanics are in a perfect place right now and need no changes? Do you want to continue to farm those sweet killstreaks off those poor noobs that stun themselves on downed enemies?

And to answer your question:

I think executions should be riskier as in MORE time spent locked into the execution and they should be satisfying enough to be worth the time spent like they were before release. If I go for an execute in the middle of a base and it goes tits up I can accept it, and I don't feel it silly at all when it happens since I made that choice. You seem to want a hugbox however so I'm sorry I missed that memo.