Bro I agree with you. I have the latest beta build on my Samsung S9 with android 9.0 and Samsung experience 10.0. The build I'm running is ZRJ9. Its smooth, no glitching, nothing that I've seen has gone wrong. Except a few things which I was warned about before installing, but I didn't use them anyways. You can always flash back to original firmware like Oreo build and reset your phone. Then you will receive the update. I think Samsung and Google should listen to us developers since we actually do know what we are doing. I love this build and cannot wait to sideload the next update. Which should've been today but I'm not sure. Anyways, ignore them. I am a proud member of the XDA community.