I'd agree with that to a certain extent. I think there were some great quests in Fallout 4, but I rarely forgot that I was playing a game, and that's not something I look for in Elder Scrolls games (or even Bethesda fallout titles). Perhaps they were thinking that it was a
Fallout game, and the original titles in that series were very game-y - all about consciously thinking through tactics rather than just getting absorbed in exploration. If that's the case, then I think that the Elder Scrolls games should continue in the vein that we know and love. Perhaps there's also an effort to differentiate the franchises so that they're not each anologous with different wrapping - in other words, you shouldn't come to Fallout expecting Skyrim with guns, and vice versa.
So without knowing why they did it that way, it's impossible to say what the impact will be on the next game. What I
do know is that you can't really talk about "trends" when it comes to Bethesda games as each is designed from the ground up, so Oblivion was vastly different from Fallout 3, which was vastly different from Skyrim. They've got several years to come up with the next game, so as long as we keep reminding them that the games are all about
"Live another life" above all else, the next game should be fine.