Is anyone really doing this, though?
It takes quite a bit of valor to upgrade a piece. You’re not going to want to start at 190 and gear up to 220 3 ilevels at a time at like 700 valor per upgrade.
Doesn’t seem more efficient to me, unless you get really lucky on your first 15 of the week, get our bis piece, and then do what you’re describing. But most people don’t have the time to then also do 10 15s for their 3 chances.
What I’m saying is, this strategy of farming 2s is not what anything more than a tiny tiny portion of the population might try. maybe.