IMHO people who would rather park the car themselves given a perfectly reliable self-parking system are going to be very, very rare. Perhaps some parking skill competition, who can park more perfectly, but those will likely disallow usage of bird's eye view anyways. So, the use-case for birds eye view in a car which reliably parks itself as good as a human (or better according to Elon) is very niche.
Back to my earlier question, when do you think FSD will be complete? If you agree not for a while, it makes sense to have birds-eye-view as people will be parking manually for a very long time. If you think it's coming this year, birds eye view is not very useful. Note that even if regulators don't allow FSD, if Tesla has the software done, they could enable FSD self-parking as that is already allowed by regulators.