Personally, I learned a ton more from the virtual muster drill. As I mentioned earlier, I still remember where my muster station was for each of my last 5 cruises that used virtual muster. For the in-person muster drill I struggled to remember where my muster station was even by the end of the cruise. Further, because many cruise lines required guests to observe and pay attention to a one-on-one in-person life jacket demo during the virtual muster drills, I also retained that information a whole lot better.
We here have no evidence that the in-person muster drill is any more or less safe than the virtual one, we just [possibly incorrectly] assume that the old way of doing it is superior because it's just the way it has always been done (in recent history, at least). I can say that virtual drills, when executed well, increased safety for me personally, but that's only my experience and I have no idea if it is true more broadly. I just know that Disney stands alone here so far.