I thought it made sense to show him being so brutal. Some could have been implied sure, but it was pretty graphic. Didn't really bother me from the story telling perspective or the "you showed what on tv?" "Ah, news flash, its a show where people eat each other. Not kid tv."
It going on and on definitely had to be done to "break" Rick. I thought it was funny him dragging Rick around by the back of this jacket. Def hard to be tough when, as a grown man, you are getting tossed around by the scruff of your neck. And then at the end he made Rick break down and cry, but gave him something back to NOT cut Carl.
I saw the peek of next week, but did think it was worth a debate. Did he actually break Rick's will, did Rick just get temporarily broken (like when he became a crazy, ghost seeing farmer) or is it all an act? Clearly Maggie is ready for vengeance.