What are you talking about? Classes were FAR FAR FAR more complex before WoD and most prominently Legion.
More spells = more difficult. If you fail to see this then you are stupid. What's harder chess or checkers? See. The whole "if I have fewer options then I need to think harder on which one to use" is a stupid argument and is only valid if there's a spell, when more spells are added, that would always be a "nobrainer" to use - which there weren't.
Feral PVP is the most braindead easy it's ever been (bar vanilla). I had 75+ keybinds in MoP, now I have approx 40. It's so mindnumbingly easy to play, and most of all boring. And the funny thing is - the entirety of the PvP community is in agreement on this.
What the fuck makes you think we are talking about vanilla? Are you in the wrong forum or something? This is BfA. People are comparing the demo of BfA (and Legion) to WotLK/Cata/MoP, and even WoD to some degree (even though it was horrific, not as much as Legion - but still).
Soothe had massive uses in PvP (removing enrages and Mass/Spell Reflection), Hibernate had massive uses (Hibernating pets for various reasons, other druids and ghost wolf).
Maybe you should stop writing considering you don't know what you're talking about. You know nothing about PvP or PvP gameplay, so maybe you should stop telling people to "write useless threads" when you don't have a clue about what you're talking about.