Hi Pete,
I've been stranded by DESS failure on my 2022 F3s. 1st for a couple minutes and then 2nd for a couple hours. You're right To be cautious and do your homework. Spyders are not the most reliable motorcycle product on the market for sure but there are plenty of them that never have issues. If you're going to be on the road with your sea 2 sky there is BRP roadside. For me, it came down to thinking is it worth it if I do have a problem however small the chance, and that answer was yes.
Ride safe.