Interestingly, didn't look like any lines were missing shifts outside of some reconfiguring while Lucic was in the box:
http://shiftchart.com/game/2021-03-11-canadiens-flames
The other 3 lines each got a shift after the goal against, then we took a penalty, killed it off, and Mangiapane-Backlund-Lucic got the first post-penalty shift followed by Gaudreau-Monahan-Ritchie.