I’d say it was never good. WoW does a terrible job at it ever since. The amount of people who don’t interrupt, cc, soothe etc for example is a much deeper running issue than the person playing the game not using spells in this category.
This is just one example i can think of.
As a new player i’d be so overwhelmed with all this that i would quit probably after just a few days, weeks at best.
Blizz is trying for sure, some helpful tips are definitely a thing with the ingame tips.
But on the other side, WoW offers way too much stuff. Class depth and amount of spells alone is insanely much.
I don’t think they or anyone can do a much better job. It would take a thousand page book tbh lol