the only reason i played portal 2 is because it was highly praised in steam reviews.
i do play a lot of games that belong to genres that i generally don't like just because they get praised a lot.
if a game gets like 10k reviews, i know it's a niche game and i won't bother with it, but if a game gets 80k reviews on steam, i assume that even players who usually don't play this genre liked the game, too.
i played rdr 2, too even though i hate games that have clunky gameplay.
i started it, because of it's popularity and i enjoyed it. the gameplay was shit, but the story and the characters balanced it out and in the end it was a decent experience.
if portal 2 was made by a smaller less known studio and not valve, this game would have been dead from the start and nobody would have been talking about.