Per Dan Harmon they wanted this so that they could actually focus 100% on Rick & Morty indefinitely. So I think that this would only benefit the quality of the show. Neither of the creators for years to come have to even worry about other projects because they have long term security to make a living. Was on GQ. Link.
I don't think they're going to suddenly start cranking episodes out at a sitcom rate. I'd be prepared to wait 5+ years to see episode 70 of this order.