Sent email got the following response...I'm sorry that you're disappointed in the change. Please keep in mind it doesn't go into effect until November 2019. More details will be announced as that time gets closer.

still no response to my question about involuntary reroutes on non *A flights

At what point would restrictions violate the t's and c's? Could UA restrict lifetime access to tuesday mornings every month with a blue moon and still be in the right?