Interestingly, the added characters and the barrel scene are exactly (some of) the reasons why I don’t like the movies and IMO symptoms for why they’re bad.
Unnecessary and don’t fit well into the story, they feel tacked on and seem to be there mostly to make the movies more appealing to an action audience.
I’ve never met anyone IRL or even online who shared my opinion, so I’d say you’re very much in the majority with that opinion.
Well, now you have. The Hobbit is a silly, whimsical, and fun book. The barrels are awesome. I also like the singing and the dwarves giving Bilbo anxiety. My biggest gripe with the movies was that elf who romances a dwarf, I thought that plotline was boring.