I loved Bastion, it was super chill, stunning to look at and the voice acting was engaging.
Also, fucking super adorable owl people, how do you not like that?
The story was interesting, nothing ground breaking, but definitely intriguing, especially with a certain name appearing. I loved the conflict that was going on. On the one hand, I wanted to save Bastion and it's people, but on the other, I kinda agreed with the invaders saying that being forced to forget your loved ones and past memories was wrong. So it made for an interest experience going back and forth with which side I was actually rooting for.
Add into that that some of the invaders only were following the idea that the path was wrong, not knowing they were working for the jailor, made it way more interesting.
Honestly I'm surprised how anyone could be bored in that zone, unless you were just trying to get through it asap. In which case yeah of course you'll be bored. The entire purpose of levelling is for the story. If you ignore the story, Blizz might as well not bother putting levelling in at all and just constantly add new raids and dungeons. Which would be a terrible idea.