I suppose they might be. But then again, their (my - I was received into the Catholic Church this past spring) vaunted Magisterium has been working on this issue for a number of years. Won't most thoughtful Catholics figure that they've thought it through pretty well?
This is one thing that amazes me about some of the initial Catholic response to this announcement. People are asking all these questions in a tone as if they were the first one to think about this issue or that. My goodness, have these Catholics so little faith in their leadership?
As a Catholic on one of these posts said, including Anglicans in personal ordanariates will ruffle some feathers. No doubt.