I'd just like to point out, really only Drilbur as a spinner is hindered by Drifloon. Staryu can get around Drifloon with either ice beam/thunderbolt/thunder wave, and Drifloon also can't switch safely into other niche spinners like Anorith or Kabuto. Also, defog is still a viable move on the likes of Vullaby and Archen.
Sure, Drifloon is a great spinblocker, but that's because of Drilbur previously being the predominant spinner and Staryu using Psychic primarly as its coverage move. Drifloon really only spinblocks Drilbur and one set of Staryu, I still believe the reason it's able to fulfill that spinblocker support role so well is because people don't want to account for this new threat and make changes. (that's all I just wanted to nitpick this one point)
Sure, Drifloon is a great spinblocker, but that's because of Drilbur previously being the predominant spinner and Staryu using Psychic primarly as its coverage move. Drifloon really only spinblocks Drilbur and one set of Staryu, I still believe the reason it's able to fulfill that spinblocker support role so well is because people don't want to account for this new threat and make changes. (that's all I just wanted to nitpick this one point)