Those people should have been paying closer attention to Inheritance because that episode establishes that Data DOES age.
The fans I'm thinking off would see that (and I have seen it described as) a cop out. Which are the types that do tend to spoil the fun a bit.
Placing TaTV Riker and Troi in the middle of TNG's The Pegasus was just a bad idea in the first place. It would have worked better on the Titan. They created a problem were none was necessary.
It would have been good as they wouldn't have to hide the age, but with the concept they had linking the Enterprise's together was the best way to go. I didn't like the way they used it or tied it into Pegesus, but a non-Enterprise, particularly a ship we hadn't seen before, wouldn't have had much of a connection. Despite it feeling a little off, a glimpse of things past for us and future for them was a nice touch from my view.