I actually don't care if it was seeded in a bad Trek movie
Hell, if you thought the movie was THAT bad, Data's death in that film shouldn't matter this bloody much to you.
If you ARE taking Nemesis
onboard, then you can't get away from the fact that they practically bloody signposted "THIS IS HOW DATA COMES BACK!!!" in it. No half-measures.
If I see a resurrection plot flagged up in big neon lights, my only concern is "are they going to use it to tell an interesting story?". Mack did. End of.