Clearly there are two camps here...
Group 1: setup mirrors correctly and you will have "no" blind spots.
Group 2: love the BSM feature.
Both groups can coexist peacefully and both are correct to a degree. I for one I'm a big fan of BSM because it gives me another layer of security, I really appreciate that. Maybe I could have setup my mirrors "better", but I also like the security nanny 😀.
In fact, I just pulled out of a incredible deal because I want to take the gamble and see what "features" or special editions will be announced for MY21 (other than the M2CS).
So let's get BSM for MY21! (Wishful thinking 😏