Cell has a fundamentally different architecture than other frameworks, so I don't think it's fair to compare it with how you would use other frameworks.
The whole point of cell is to build the simplest building block you can compose to build complex structures, and a lot of the problems faced by other traditional approaches can be tackled in a different manner using Cell.
From my experience I can build fairly complex apps without having to worry about all the problems you mentioned, they are just structured differently.
If you have time, I really suggest you try playing around with it, If you still don't like it you don't have to use it, but I'm sure it brings some interesting ideas to the table that cannot be experienced by just reading the homepage.