There's a nice open-endedness about AGT. In the mists of our minds, the ship and crew could have gone
anywhere from there. And had it been the literal end, then we'd have been left with those hypothetical possibilities to ponder.
The movies act as an anticlimax to that. First they shoot down 1701-D herself, then they basically do character assassinations on the rest of the crew as well. Our lasting impressions of The Next Generation are therefore suffering a kind of taint; a post-script where we start our discussions with "That show was awesome!", but finish them with "Oh yeah, but it all got a bit depressing in the movies at the end".
AGT left us with hope. But the TNG movies stomped on that hope, kicked sand into it's face, squeezed lemon juice into it's eyes, and left it rolling around on the grass screaming "Make It Stop!".
Of course, all of this is only evident to us in retrospect.

At the time, with TNG ending on a high, sending the crew to the big screen seemed like the obvious thing to do. And I can't really imagine any way in which history could have unfolded differently than the way it did.