It was the Clarets' first away point in the Premiership and came just days after McDonald celebrated his 21st birthday!
"It is one of the best days of my life so far," he said.
McDonald is yet to start a game for Burnley in the top flight.
Prepared to risk a heavier defeat in an effort to salvage something, Coyle's faith in McDonald received its reward.
"It was an unbelievable game just watching from the bench," he said. "To then come on and score; it doesn't get any better than that."