Thanks for the detailed video. Someone else with the Bosch Glide will have to comment (I had the GCM12 CM12before getting the Kapex -- square cuts were no problem, but got a lot of deflection on bevel cuts), but I hear you man on the 5 star effect. People get the tool, make a couple of cuts, and maybe they just want to validate their purchase, or maybe they want to project expertise (people do this with movie reviews all the time), but they immediately go and post a glowing review before they've put the thing through its paces.
BTW -- I didn't realize that you were the person who did the video on the R4512 problem. I also have that table saw, so that was a really helpful set of of videos -- thanks.