It's not much fun being on the receiving end.
Have you looked outside lately? Global pandemic that's now endemic and an active war in Eastern Europe. Sunshine and rainbows, man. Sunshine and rainbows.
Really? They haven't confirmed it. They've teased it for years now. The Krynn UA was dripping with names and lore making it obviously a Dragonlance UA. The "multiverse" UA went out of its way to never mention anything Spelljammer lore related. They included several races that were used in Spelljammer, but also races that weren't, races that were used in Star Frontiers, and races that were new.