Barry Ferguson struck for Gers and Smith said: "That is the type of game we are going to get between now and the end of the season.
Smith also had his moment of temporary madness when he lost his temper after four minutes of time was added on.
He explained: "What frustrates you - and I have no criticism of Motherwell because we do it when we are away from home - but when you manage to get the goal it is the team who have not been wasting time who are penalised at the end of the game. That was the point I was trying to make. We weren't wasting time yet we had play for another four minutes, which gives Motherwell an opportunity to get back in the game again."
He added, however: "We must give Motherwell credit. They set out their team very well. Teams do not get the credit when they come and play. They made it awkward for us."