So yeah, you might say that many sets in BfA looks boring. I agree, most are boring. Let's take Uldir. Boring as shit, where cloth is okay, still boring. But then we look beyond that and see how well they are made. Much more detailed and worked on compared to the previous expansion. Imaginative? Maybe not.
The work is still there, I just don't like the theme or the colors personally. BoD gear looks awesome for some races though. Except mail. But after 15 years with 80% shit mail-sets we are used to it. And about the music team have taken a hit? It's the same people we have had for ages. You heard about Glenn Stafford? Google him and see how long he has been making WoW-music. And BfA music is damn great. Good thing we all have different taste I suppose.
"The requirements of the latest expansion issued a massive challenge to the game’s composers and sound artists. As the action takes place on two very different islands – Zandalar for the Horde, and Kul Tiras for the Alliance – Blizzard’s team wasn’t able to reuse many of the sounds and audio tracks it created. Each island had to have its own personality so simply duplicating assets would not do. As a result, Battle for Azeroth has more than ten hours of music, surpassing all of the game’s previous expansions, with a similar effort put into the sound and ambient effects."