Indeed that's another way to see it as well, but since we were talking about yukkuris, I went for something a bit closer to their nature and if you put aside the whole meta explanation of crying moe or cute agression, the usual scenario is a clear case of fragile bully/crocodiles tears.
But yeah, in extreme cases it's a natural reaction for creatures, not too disimilar to how you have the usual "war scene" of agonizing nearly dead soldiers going "mama, papa", etc. and you see yukkuris, adult ones, going for "MAMA HELP ME" when things are just lost and no hope is anywhere.
Basically the key difference is mental strenght and tolerance, the average creature can hold it togheter longer than a yukkuri, while a yukkuri kinda breaks easily until something automatically resets their mood (some sort of sweet, shitting enough while being given a break, etc.) you could argue that's their advantage, the theorical "quick reset" compared to normal creatures that take longer, but again, normal creatures have a greater tolerance threshold so they have an easier time avoiding that "break point", so no real need for a "quick reset" to avoid reaching a point of no return in record time, well unless you make sure they don't have that quick reset, then anti yukkuritis kicks in and it's game over, but usually in a natural enviroment a scenario that would give a yukkuri no chance to quick reset themselves may as well be one with the yukkuri being killed by a predator or something so it becomes redundant.
In the end the real reason is meta and in universe we can speculate as much as we want since yukkuris have enough reasons to have certain traits because of "trash manjuu" status or "it's just a parody of an actual IRL natural trait.".
We can go pages over pages about the reasons or we can just simply everything with "Patry Golems, Asshole Wizard Shenanigans, roll with it."