the trick got old FAST especially when at a certain point all the up and comers wanted to sound like either mogwai or godspeed, that's what killed it
Mogwai are peak channel 4 kitsche as well. Godspeed have that strength that there is a more ethereal core pulsating there, but Mogwai really single handedly killed the genre. Then you had people like Explosions in the Sky which just took Mogwai to even more saccharine extremes. They are musically one of the most unforgiveable bands ever created (even worse than Dream Theater!) but I'd still say if we take the whole ideological package Mogwai are one of the worst bands of all time.
Tortoise I don't mind for their moody minimalism but I think the last time I listened to them was 2016 one stoned night, which says everything really.