Hereford defender Jamie Grimes thought that the sending off of Kidderminster striker Amari Morgan-Smith changed the game at Edgar Street this afternoon.
Kiddy scored first but three Hereford goals sealed the victory.
"I thought it was a close game until they got a man sent off," Grimes told BBC Hereford and Worcester.
"We did well to control the game and a bit of magic from Cammy, I thought he did very well, fantastic finish.
"It separated the teams and then the third goal, we controlled the game.
"I don't think Morgan can have too many complaints. I think he's gone in quite high on the keeper. One of those 50/50 ones but they would be disappointed if our striker hadn't been sent off for the same thing.
"It did change the game and when we got that goal we were confident we were going to win the game.
"I've been impressed with Cammy. He come in the last few games and our results have picked up.
"He's got a good left foot, good quality. He played with a different midfielder today, Haines who was fantastic in there as well.
"Harriers started very well, we knew they would and they got their goal but we dug in well, got a goal back, back to 1-1 and that just kept us in the game.
"The fans have made a massive difference."