Yeah, I don't disagree with any of that. The problem that the TV show is having is that they are struggling to condense the massive complexity of GRRM's world into a simplfied version. I don't mind that certain characters are repurposed for different story arcs (such as Jamie and Bronn), but what I do have a problem with is how really awful some of the scripting is, and how badly it's mangling the characterizations of the books.
Littlefinger's plot, for instance, is very different now because of his different travels -- which is okay, but his plot is now convoluted and just plain dumb. If any one person had seen him with Sansa and reported it back to Cersei, his plot is foiled. Yet he makes no effort to conceal Sansa's identity, or the fact that they were together going to Moat Cailin and the Boltons. Ugh.