I think the Wideman talk was more Wideman taking the initiative to console a young guy and reassure him. Xhekaj didn't look to be panicking, but I'm sure he was comforted by Wideman. Good move by the former.
Harris looked great yesterday, I think it shows that he feeds off of playing with better players as his game is so complementary and smart. But as Hannibal pointed out I think Harris might struggle against tougher, physical opponents, whereas Arber will thrive. Xhekaj was caught off position a few times yesterday and it led to two breakaways, so he'll have to improve on his positioning. But he didn't look like a fish out of water.