This is really common on lots of basses, even really expensive ones. Fretboards are wood and can expand or shrink just like any other wood, with humidity and temperature. StewMac actually has a pretty good video about it.
It also varies by brand and type of bass. All of my Yamahas have had frets you can feel along the edge, but aren’t sticking out or sharp or anything - you can just feel them. Might be due to how they round them off or something.