Hearts fans were entitled to boo their team off the pitch after losing to Dundee, says Stephen Kingsley.
Ellis' Simms first half strike was cancelled out by a Toby Sibbick own goal, before Danny Mullen completed the turnaround for James McPake's men.
The Tynecastle crowd voiced their displeasure at full time. Robbie Neilson 's men are still comfortably third in the table but with only one win in five.
