Sounds like they didn’t try very hard.
I can believe it, because of how integrated everything is at Apple. You probably need to bring a lot of iCloud support over (App Store, backups, apis), but that may also require supporting applications and configurations
Well, it’s not like they said they gave it their best, and I really doubt they did.
They might have had a couple of trained monkeys bashing typewriters for 3 years in a room with the sign “Apple Watch for Android team” on the door for all we know. They just said they were “working on it” before scrapping the idea
Garmin smartwatches are good, support both Apple and Android and have their own App Store store for the watches that works with both mobile OS platforms.
It’s not clear what critical features couldn’t work for Apple on Android.