Ok so whilst i dont think having an mmo is all that bad. Its just , this is elder scrolls. and the bad part about it is that i believe it will ruin the future of the single player franchise. just think, the elder scrolls 6 comes out. But we will already know the province that it is based in because we will have played the mmo. And before you say "just dont play the mmo". having zenimax make the province will restrict bethesda's creativity and therefore might make a worse atmosphere.
These are just my opinions and what i believe is zenimax should have made an mmo based on the elder scrolls gameplay and not on the setting. And even if they put the mmo in akavir that would be pretty damn cool. But to late. they have already been working on it for 4 or so years.