As for Lowe's kid, I don't see the big deal with the team giving him the final 2 games of an 82 game season. He's put in a lot of AHL time (>300 games), and has been a decent defensive dman at that level. With the NHL team down 3 dmen and more high profile prospects either looking like crap (Jones) or injured for past 2 months (Mantha), it's not like the picks are abundant.
And it's not like he's been terrible, for the dmen he by far has the best +/- (+13) on a team with a -19 goal differential. If his last name wasn't Lowe I bet fans would be wondering why he hadn't been called up sooner.