What they learned is that it can be done, but it's easier to not try to. They're 3-0 since iHart returned, and he's is a +45 over those 3 games, leading the team by a lot (Williams is a +34, Shai is a +27 no one else about +20).
It is good to be able to match up against everything though, definitely. But a big reason they got worked by Dallas was that Lively and Gafford went nuts. Need to be able to match up against a team throwing rim runners at you.