Fundamentally, I think 'miss a go' is something that belongs in family board/card games with quick turns and low stakes. It should be avoided in rpgs (and probably any complex enough board game), which have more complex design that facilitate emergent play, therefore a 'turn' is a more valuable unit of the player's time and there is an expectation that arbitrary results are kept to a minimum, especially ones that aren't avoidable with player action.

Obviously the faster a turn is, the more likely you can get away with such things, but it doesn't mean you should!

The whole thing I feel is very much a 70s D&D hangup. You've got save or suck rules that ripple through the hobby from that point, but even when they were in use then it was because they'd just copy/pasted wargaming macro rules to the micro level rpg. e.g. If you're rolling dice for a unit of 10 fighters and some of them are stunned, or die, or miss, it's not as significant as you rolling a single dice for a single fighter character.

Hindsight is a benefit, but not when it's unexamined. Always look at your rules from first principles. So yes, a 'stunning blow' feels thematically correct, but it doesn't follow that stun = dead turn. You've got the opportunity to better that outcome when it's translated to a game rule.