While some don't have any issue with the move, others have certainly voiced their opinions on the decision, and at such a young age with a rabid fanbase to win over, it was definitely an intriguing choice from the young forward.
The news likely came as a shock, but once the season gets going and he gets on the ice, there isn't going to be any wider issue in Montreal, especially if the young forward can live up to the promise he showed early in St. Louis.
Ultimately, Subban was a huge name in Montreal for a long-time, but he doesn't have his number retired and likely won't, so allowing a young kid to use it is a great move for the organization, but given what Subban means to some fans, it's easy to see why there is some controversy around this move.