Meh. Kindred is probably my favorite character of all time, I don't think it's gimmicky as much as it is extremely niche, and I hope Riot realizes having Bards and Kindreds who almost no one plays but those few people love to play them a lot is okay. Their last pass at reworking Kindred was a failure in a lot of our opinions, hopefully they just kinda keep their hands off. I love the theme and character of Kindred too, so it's just to each their own I guess.
That being said, I don't think Swain will be a botched rework. You mentioned Galio and I do think he might be the only failed full VGU, everyone else has been great. Swain is such an important character both in the lore as well as for the history of the meta in League and they know a lot of people are looking forward to the same champ with a new game breaking playstyle which is what they've been doing lately, and I'm super hyped to see what they came up with.