This.
OK, WotC came up with something you find restrictive and that happens to not fit with your campaign setting. OK, similar things have been done before with the sorcerer. That makes them iconic, not cliched. There is a difference. You don't want bloodlines in your campaign setting? You don't need them. You don't like the idea of bloodlines in general? Tell that to Wotc in the next questionnaire. Maybe a lot of people agree with you and they'll change it. But most of the people on this thread are happy to see them back and are looking forward to them, and your whining about it is not going to change their minds. So can you give it a rest already?