Sure, Temis, but you rent all kinds of films and regularly keep your queue stocked. You are a much different rental user than, say, someone of my parents' generation. And I think there definitely will be a backlash from those kinds of customers.
The average person doesn't have the slightest clue when DVD/BD release dates are unless they see it on TV, in which case it's in their memory for oh, another 2 minutes tops unless it's a movie/show they're interested in.
I'd be willing to bet a large sum of money that if you that if you asked 100 random people about the DVD release date for a popular recent movie, 90 of them or more would not know the answer. This 28 day delay simply isn't going to matter for the vast majority of people.