I cut my eye teeth on a SEARS 10" RAS. Bought it 1970, sold it about 12 years later. Sold it as I purchased a Delta contractors saw for a price almost too good to be true! Plus there was no room for both in my garage shop and I was tired of moving the RAS when I need to use it. Never felt the RAS was dangerous. I ran negative hook blades and was very careful the few times I ripped with it. For rip cuts, I mostly utilized a circular saw and shop made guide to rip.
In my opinion, the decline of RAS is due to the advertisement and the resulting increased popularity of the miter saw, which was touted to do almost anything a RAS could do, at a much cheaper selling price, and it is safer. As for safety, I believe one of the early chop saw makers was sued over the saw design. Doing a quick internet, DeWalt and Black Decker are now currently facing a suit over the design of their compounds miter saws. I have talked to several woodworkers about an RAS. They claim it is far too dangerous, the operator must place his/her hands too close to the blade, you cannot do a rip cut, etc. But none of the them ever utilized a RAS. Seems as they just parroted back what someone wrote on the internet. If I had the room in my current shop, I would be on the lookout for an older DELTA 12" turret head RAS.