So from his point of view, the movies have been a bit of a disaster. He'd been hoping for something he could take classes along to. Instead, the movies, are dark, brooding, serious, dark and extremely violent in places. They're absolutely not suitable for the age range the book is pitched at and, in any case, they miss the fundamental quality of what makes the book so great. It's not a disaster for him - the book is still there and always will be there. But his view was that it was a missed opportunity to give the "best children's book ever written" a proper adaptation.
It wouldn't work. And I'm not saying that to be cruel, but a major part of the viewing audience would have seen LotR first and quite frankly hate the Hobbit done according to the book. And all that negativity would surely rub off on the movie, even if it was perfectly suited for boys age 12. Most people wanted LotR: The prequel and that's what they got. I'll go out on a limb here and say they actually made it a decent character drama with Thorin Oakenshield losing himself and finding himself again. Bilbo torn between loyalty to his party and doing what he thought was right. And it did a fair job to explain why everybody hates each other so much, dwarves and elvens and men.
I didn't care much for the romantic angle, but I guess it kept the girlfriend factor up. It was a bit long-winded, it was one movie stretched into three. The big action scenes are good, the small fight scenes about as painful as LotR. Remember Legolas' skateboarding and the counting contest with Gimli? Yeah, about the same. And don't forget the armies actually do clash in the book as well, Bilbo just isn't a big part of it. I guess they could have made it his story, but again that's not what most people wanted. They know how that story ends, with him returning to the Shire with the Ring so there's no excitement there they want the story of Middle Earth. Maybe it could have been done different if the Hobbit had been first, but not now.