Depends on what we want to specifically look at. Re-releases like Rare Replay, Mega Man Legacy Collections, and others like that are a non-issue. There's nothing to complain about with them, they are usually just easier, more convenient, ways to experience old games for fans and young folk as long as they are done right.
Throwback games on the other hand can be a mixed bag, but I generally think there are a lot of good games that have come out. Yooka-Laylee, A Hat in Time, Shovel Knight, Undertale, Cuphead, Sonic Mania, and plenty of others. Of course it can be said it is slightly overdone, but a lot of it is simply because people want these kind of games. While there are far more people going to be playing the next Horizon: Zero Dawn or Star Wars Battlefront 2, there's a dedicated audience of people that want these nostalgic reminders of a different era of gaming that may not be as prevalent anymore.