People complained that FG was just a plot device yet Nero is just as much of one.
Nero had a name, a personality, a motive, and a plan.
B&B have stated publicly that they had no idea, whatsoever, who Future Guy was, what his plan was, or what his motives were. They would "figure that out later" .. which, by the way, they never did. The fact that the writers didn't even know who this guy was should tell you right away that Future Guy and Nero are not comparable. Future Guy was worse than the text book definition of a plot device. He was little more than a prop - a slight step above a tricorder. The Reman Viceroy in Nemesis had more substance than Future Guy. Hell -- B4 had more substance.
People complained that B&B resorted to appealing to the hornboys with Seven & T'Pol in a catsuit yet I hear nothing of Uhura's superfluous striptease.
As has been said before, the Uhura/Orion Girl/Kirk scene and the Trip/T'Pol scene (EDIT: which is what people complained about on Enterprise regarding T'Pol) were totally, 200% different.
(As an aside, obviously, the Orion girl was there for the express purpose of Kirk bedding a green broad. Like it or not, Kirk getting the green chick is mandatory if we are to revisit the TOS crew in a movie that takes place during the TOS "era").
Uhura undressing (after work in her apartment, for less than 5 seconds), and Kirk checking her out from under the bed was to highlight Kirk's personality at that point in his life. It wasn't the VIEWER that was checking out Uhura as she "undressed" --- we were seeing this from Kirk's point of view under the bed, this was a scene about Kirk and what was on his mind and how his mind worked at that point in his life -- and it lasted less than 5 seconds before Uhura found him out and put him in his place.
The "Decon" scene in Enterprise was strictly about seeing erotic contact between T'Pol and Trip, for the explicit purpose of turning the viewer on sexually. Pay attention to how the scene was shot and how it was edited.
To say these two scenes are comparable is insanity.
EDIT:
Just to clarify, I liked the Trip/T'Pol scene --- because I liked it for what it was --- a reason to see "Decon" gel get spread on T'Pol's half-naked body. I don't remember a single line of dialog from that scene, though I'm sure there was some.