I’ve been using Bontrager, Niner, and Enve bars on a mix of road, gravel and mountain bikes for years with no issues whatsoever. I’d don’t have a Specialized bike but would be really confident in their products too based on their reputation.
I did have a carbon railed saddle snap on a mountain bike once. It was just a sudden “crunch” as I put weight on the saddle while riding, and the rails snapped. Digging deeper at the time others have reported failures on some mountain bikes with carbon saddles, but it seems brand specific. I believe it happened to one of the hosts of the Leadville Podcast as well. I’ve since ridden carbon railed saddles and had no issues.