I don't think it's worth relitigating the entire OGL thing, but no, it could not "equally" be a power struggle, especially given absolutely ZERO heads rolled. The only person who left even adjacent to it was Ray Winninger, a couple of months before, who clearly must have had to be removed before it could happen. The D&D team was never "not subordinate". In fact, they cared so little about them, that if the leaks were true, they largely ignored them and didn't even really take input from them.
Given the exact same people, and I do mean exact same people are still in the same roles, there's no reason to believe there was any "power struggle" per se. Rather there was an internal debate over how to deal with the fact that their new plan seemed to be getting incredibly bad press and significantly damaging the brand.
It's not like D&D is "singing a different tune" now to what it was in say, November, either. The only thing that's changed is the tainted "One D&D" brand isn't being mentioned. But all the projects that comprised One D&D are going ahead.