I know the feeling on both sides when there is a heavy imbalance at timeout.
But both sides agreed to the same amount of time to 'get the job done'. If one side spends more time than available to make better moves, at the expense of time management, then that's the way the game goes. So I am okay with taking the win, and have to be okay with accepting the loss.
The only thing that would be crummy is if one side is just mindlessly moving around the board rather than playing an honest game to win. Though I do understand when that happens a bit near the end.
better to play strong moves than rush:
give them hard enough problems to solve & they may make a mistake or run out of time anyways;
miss something while hurrying & the tables will turn.