T100 Transmission Failures

After 52 years of riding I decided to get a Modern Classic 2023 Bonneville T100.
I love the bike when it is not broke down. In less than 10,000 miles the transmission has failed THREE times. Two dealers diagnosed and "repaired" it under warranty. It is in the shop now after less than 2,000 miles on the last "repair". I could go into details on the nature of the failure and the parts replaced by the dealers if anyone is interested. What I could use is anyone else's experience with this lemon. How could Triumph build such a fabulous bike and put such a POS transmission in it? FYI: this is my 11th motorcycle and over 360,000 miles ridden. I taught my first MSF course in 1977 and the last one a few years ago. I have never had problems like this. I KNOW HOW TO SHIFT A MOTORCYCLE.
Thank you for letting me vent.