I've been following this thread, and maybe I'm just in a minority in liking Season 7. Sure it's not as good as Seasons 3 and 4, but there are a lot of episodes which got low grades that I just enjoy, guilty pleasure or not, such as Emergence and Masks.
As for Preemptive Strike, I loved this episode, but putting it into a bigger landscape, I think it adds greatly to what already was a great story in Season 7 of TNG and Season 2 of DS9. We go from Journey's End, to The Maquis, to Preemptive Strike, and end with Tribunal, and it made for a nice 24th century expanding the universe arc and I loved that. As for this episode only, what's wrong with providing closure to a character that people liked in Ro. It was great closure, and Picard's reaction at the end said it all.
I know I'm not going to change anyone's minds, but seeing this thread and the complete bashing that Season 7 is getting, I might as well be the lone voice in the wind I guess.