Seriously what the hell?

Every boss just gets destroyed by fire, I got s+ on my second attempt (first attempt first boss killed my cloud so I started again with a single HP weapon swap).

It feels like we went weeks without dungeon content and then they roll out this "very hard" dungeon that doesn't need any more strategy besides "go all in on fire".

We have had far more interesting dungeons in the past, with enemies that actually had a range of strengths and weaknesses that needed you to make small adjustments to your team to win let alone get S+ and then after this wait they roll out this?

Is anyone else let down by how quickly this dungeon shot by and now there's no point going near dungeons again?