On-loan striker Danny Graham had given the visitors an early lead before Chico Flores netted a controversial leveller, with the ball flying off the Spaniard's hand and into the back of the net.
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"I can understand that [the Chico goal] because nobody in the ground can spot that. I've got no grievances there," Bruce told Sky Sports.
But the 52-year-old was less diplomatic regarding Chris Foy's decision not to award his side a penalty: "He [Tiendalli] has practically caught the thing," Bruce added.
"That is a big call, a big decision. For me, that is a clear-cut penalty."
Bruce was, however, able to take comfort from Graham's opening goal, which he hopes will spark a productive run for the 28-year-old who had gone 30 games without netting prior to Monday's encounter.
"I'm pleased for him because all strikers go through a time in their career [where they don't score goals]," Bruce explained.
"The one thing you have to do then is keep work and keep persevering. Let's hope he can go on and get us a few more."