I only saw it for the first time yesterday (Australia is pretty much always last

)
I understand the sensitivity regarding that, and the want to not glorify Manson or the murders; but overall I think he played that whole angle too safe. Plotwise it could have all panned out how he wanted, and still could have given the reality of the murders more exposition and had more threat to Sharon, she essentially wasn't even involved in the final scene, so much more could have been done with all that incredible tension and Tarantino still would have got to save Sharon Tate and have his happy ending.
Did anyone here not really know about the murders or how the Manson thing went down before seeing the movie? I read Helter Skelter in preparation and I think I would have questioned why she was included too if I hadn't educated myself a bit. I also would have thought the finale way over the top if I didn't know the real murders were probably even more brutal than that.