It'd be a lovely world if Carruthers had gone over to the Ref and said 'Sorry mate, I tripped over myself, it wasn't a penalty', or Coutts and Fleck never bent the Ref's ear to book an opposing player, or Sharp never went down the first time he felt a touch on his shoulder.
The problem is that every other team in the football league win dodgy penalties, some against us, and players go down like they've been poleaxed at the merest touch. Look at Bolton in the first half, their whole game was based around getting set-pieces.
We Brits don't like cheats. Diving Johnny Foreigner introduced it probably as far back as the 66 World Cup, and it was much despised at the time, but then the likes of Franny Lee started the trend for diving British players and Sir Alex and his ManU team perfected the art of influencing Refs. Slowly it worked its way through the league's and is part of the game now unfortunately. Any team now who wanted to play the commendable Brian Clough way for sportsmanship nowadays would frankly be at a massive disadvantage throughout a season. Football is a business and there has to be a level playing field. I'd love us to be the one team in football who's players never dived or moaned at the Refs, but if we were, we'd also have to accept that it would cost us points over a season.
As for this particular incident though, I don't think think it's that clear one way or another even after viewing it several times. Certainly it's not clear or obvious enough to spoil anybody's enjoyment of the game I'd have thought, but there you go, it's all abaaaaht opinions. UTB.