Not to defend Angry Birds but I know some other mobile developers try to monitize by usign an ad network. To ad company provides a library. It’s that library that needs the permissions. There are also metrics companies who also provide libraries that also need those permissions.
That’s not an excuse. Arguably it would be nice of the libraries didn’t require the permissions but until enough users start caring it’s not likely anything is going to change.
As for getting the model number of the phone, most app developers would like to track bugs and or crashes and it’s certainly helpful to know if they correlate with a specific model and or OS version. On the other hand it would probably be nice if they asked permission before (like say Chrome does when you install it)
