ISO ult is dogshit?

Imagine you ult a reyna and she just waits and blinds when the barriers drop - 90% loss

Same with breach

And like a 70% loss against flash agents, because you have to be prepared for etiher a fake flash or the real thing, meaning that you are kinda disadvantaged

Realistically I see the ult as a counter to shotguns,marshalls, frenzies, stingers, spectres etc. Meaning it could be powerful when you are ecoed playing against a lightbuy or something but that is sich a niche scenario. Addtionally a good use could be ulting the sentinel playing on a given site allowing your teammates to get an easy plant on attack, but all of that depends on how easy it is to ult sb, ( ig you could also try to use it to stall for a defuser, play time, or take a 1v1 in a 1v3 or something but again there are problems wih that ((like what happens when you exit the ult and how are the non-ulted players affected))

You cant use abilities

Ult-the gulag

good for 2v1. Iso ults, ally will wait right beside the enemy's last position. In case he wins, ally agent could kill the enemy.

Ult that only isolates 1v1 and doesnt give you any advantage in it is meh tbh

Question - what does the ult look like to the outside players? are the gulag players invisible ?