If they make another recall it impacts their ability to make recalls in the playoffs:
From the CBA:
Following the conclusion of the Regular Season, no Player may be Recalled from Loan to a club of any league affiliated with the NHL, except that:
(i) a Club may exercise an unlimited number of additional regular Recalls, provided that it may have no more than three (3) Players on its Active Roster who were Recalled by way of regular Recall after the Trade Deadline. However, if a Club has Recalled four (4) Players pursuant to Section 13.12(l) above, such Club will instead be permitted to retain those four (4) Players on its Active Roster following the conclusion of the Regular Season.