I don't mind it at all, because I see it in a fairly simple way:

If the content was more fun synced than unsynced, people would run it synced all the time every time. So people who would rather not do it synced will get more value out of the content with unsynced.
Meanwhile, the people who do find it more fun to run it synced can still do that, they just need to find 7 like-minded people across the entire data center - we just got cross-world party finder to help with that. If they cannot find even 7 people who would also rather run that content synced, I dare say the content isn't particularly fun synced in the first place, so not much value is lost here.