I had less of a problem with Data sacrificing himself than I did with the writers cynically leaving the door open for Data Mk. II in B4. The sacrifice itself was a little contrived, and did seem a little too calculated to mimic the end of of TWoK
, but it made enough of an emotional impact that I was willing to go along with it. And then they completely undercut that impact with a few saccharine strains of Irving Berlin. No thanks.