Sounds like a random problem. May be that someone on the assembly line had some bad days. Maybe didn't think they needed to use the locktite promoter or they were not applying enough locktite, who knows.
No one is saying this is ideal nor is anyone making excuses for BRP. Everyone agrees that every new Spyder should be perfect. Still, the fact is that we know they aren't all going to be perfect.
On a scale of 1-10, this is about a 1/2

. Once it is fixed you should never have any more issues. Your future is very bright!