I actually think players face a higher threat of being injured in the WJC, because it is a short, all or nothing tournament, and opponents will take liberties in the heat of the moment (ie Jenner and Kuznetsov), while players will exert and all-out effort and fight through injuries in order to win.
However, I really can't see the month away from the Baby Sens as anything but a positive. If anything, it will refresh and recharge his drive once he returns to North America. He would be able to see friends and family over the holidays as well. I understand why the Sens would want him to stay over here, but I think there are way too many other positives to keep him from participating in the tournament.
" You said you don't give a f*ck about hockey. I've never heard anyone say that before."