Dam. meter

[ToasterMan]

If it wasn't supposed to be skipped it wouldn't be possible to skip.

By that logic, anything that's possible to do in a video game was intended by the Devs. There's a lot of wacky things that are possible in a Super Mario 64 speed run. I don't think Nintendo intended for the player to do any of that stuff.

Anytime they put in a mechanic that starts at a certain time or % in the fight they are taking a chance that it can be skipped

I personally think that's the easiest way for them to progress through mechanics. If they didn't then I think the boss would be jumping or turning invincible every time a mechanic would happen. Would you really want that?