Preventative thought on a Boost...bring along a jam nut and set screw for the secondary (as in - the deflection adjuster from NA P85 clutch models) . If the one way bearing in the primary ever binds up, you should just be able to give it some deflection and keep riding. Otherwise if that bearing piles up and the belt is tight...you've got more problems.
Have not seen any failures on a Boost....but have seen lots of similar problems with various ATV models using similar 1-way bearings over the years.