This is a very harsh suspension by Player Safety terms, who are supposed to take into account experience and history into supplemental discipline. A four game suspension for a first time offence is a strong message to Rempe that these kinds of hits are unacceptable, and will be punished accordingly. Still, it always seems like other hits just as worse go unpunished, which leads to wonders about Rempe appealing the suspension.
After making waves for ferociously fighting in his first few games in the league, Rempe broke the code last night. He denied fights from the Devils several times before throwing this huge hit and getting ejected, waving goodbye to the Devils on his way off. As a fighter like Rempe, it's completely disrespectful to not answer the bell after laying a huge hit - to taunt the other team too makes it that much worse.