This thread will no doubt be locked in short order, but I do want to point out meeting a Rotenberg is not meeting a random Russian coach. The senior Rotenbergs have been under sanctions since 2014 and were childhood friends of Putin. They are about as inner circle of the regime as it gets.
It's not appropriate, IMO, for an NHL team to send staff to meet with people of this ilk. This isn't me picking on the Habs either: I was critical in 2018, too, when my Leafs invited Pavel Rotenberg to their development camp. It just shouldn't happen.