Which is exactly why they had B4. They did not want to totally alienate all the Data fans out there by making it a "final" death.
That said, seeing how well Brent Spiner has aged in the last few years, Data's death is probably a good thing for that.
I was far more disappointed in the movie for the fact that once again, when the Romulans are brought out to be the major adversary their leader is not an actual pure-blood Romulan.
Since TOS, it is almost as if B&B fear to give the Romulans their time in the light as competent foes.
Regards,
CKV.
"It is our mission to push back the darkness from the light and expand the boundaries of knowledge and understanding. That doesn't mean exploring every pleasure planet between here and Andromeda XO."