The Latics boss was among those who watched Wigan Warriors overturn the largest deficit in Grand Final history against Warrington at Old Trafford on Saturday to add that trophy to their Challenge Cup triumph.
And, after going behind to Tommy Spurr's eighth-minute opener, Coyle's men were assisted by Grant Hanley's sending off half an hour in before rallying with a pair of second-half goals.
Substitute Grant Holt marked his first appearance since August by claiming the first, although it may ultimately go down as a Spurr own goal.
Then fellow replacement Emmerson Boyce, who had captained Latics in their first ever home European tie just three days earlier, grabbed a stoppage-time winner to cap off a historic sporting week for the Greater Manchester town.
"We all watched last night and it was inspirational when you see the comeback," Coyle said.
"We've shown that on the football side this year, the amount of points we've retrieved from losing positions...it tells you everything about the character and the spirit you've got at your club.
"People will always talk when they're winning games about how good the spirit is, that comes hand in hand, but the testimony to any team spirit and camaraderie is when your team is up against it.
"You saw it last night in the rugby league, that comeback was amazing, and again today the lads showed a lot of good attributes there that really pleased me."
It may have been a different story had stand-in captain Hanley not been dismissed half an hour in for sticking an arm in the face of loanee Nick Powell.
Coyle acknowledged his team were feeling the effects of a European hangover but was more than happy to see the momentum shift once they gained a numerical advantage.
He added: "They've got something to hold on to taking the early goal but I felt we've grown into the game and then the lad's got the red card.
"He's been silly because he's been in control of the situation and he's thrown his arm out and there's no need to do it.
"I'm pretty sure Gary (Bowyer, Blackburn manager) will be upset by that."
Wigan last week