I can not agree with this more...
GRRM is putting his name on this series. If any of the writing or producing would have offended him to the extent that we read about here, I am absolutely positive that he would have withdrawn. Instead, he is writing in the parameters of what has already been written a good portion is not exactly like he wrote it in his books. D&D has done a brilliant job of setting us up for this climax.
Actually, I can imagine what GRRM would say to someone who complained that the show was ruined because they changed the names of the men who went with Qhorin Halfhand.* And it's not pretty.
*believe it or not, someone actually posted this