When I say "one of the most successful studios today", I don't compare it to Rockstar or say Rare is in a hypothetical top 5 or top 10.
I mean that, at the moment, now, since 2015-2018, their 2 last releases are working extremely well (not all games hit such a big milestone of 15 million players (and it's still growing as it was 2 months ago) and have amazing legs).
They inspire confidence once again, the studio is the biggest it has ever been size-wise. They are back on track and their new IP is obviously among the most successful ones of this gen.
While they were a decade ago disliked/hated by their fanbase, hits by layoffs, without direction or soul, on the verge of irrelevancy and possibly even closure considering what happened to Lionhead (Fable was an iconic franchise for MS and MS bought them in 2006, so it was a major studio for them too. Yet MS closed the studio and they no longer exist. Who knows what would have happened if Rare didn't convince the leadership that they could be successful and relevant again in the industry).
That's what I wanted to emphasize.