The room where the zirconic claw spawns is not just re-decorated, it's totally changed in size and shape.
Which kinda begs the question 'What will happen next time the claw is due to spawn?'
I can think of 3 possibilities.
1. it will spawn as normal, in the new room
2. it will spawn somewhere else in Doom
3. It won't spawn at all, because the devs forgot that's where it's supposed to be and the new decor blocks it spawning
(No. 3 because I allow for the fact that the devs might be as human as I, and it's the kind of thing I would have forgotten about)