Yes, it was in Claremont’s run that Carol and Wanda became friends (well, two issues of that run), which is why he had Wanda take the news of the Avengers’ betrayal especially hard.

They’ve returned to that friendship a few times since then, most prominently in Avengers vs. X-Men #0 - but the two characters have never met since then and Wanda never shows up when Carol’s friends do.

I don’t think the writers/editors hate Wanda or anything. It’s just that they draw on more recent comics mostly and Wanda was banned from comics when Carol began to be a star again.