Munetsi saw his strike canceled out by Jan Paul van Hecke in Sunday's 1-1 draw.
He said, “Especially against a team in the Premier League that is also in good form, we just lost our guard. I think we did well most of the match, but in the second half, they started to dominate the game, and I think it's just those crucial moments in the Premier League, where it's a corner kick, or even before the corner, we could communicate better or defend the corner better, because they played it really quickly.
“We need to keep our concentration, especially in the dying moments of the game, that is very crucial, and you can't do what we did, especially at this level, and it's on us.
“We have lost crucial points, Tottenham was similar and this game was similar and it's something that we need to work on to try and get more clean sheets in order to win games.”
Wolves are still waiting for a first Premier League win this season and Munetsi also said: “But this is just part of the game, where if you haven't won a game, it's always difficult to keep the confidence. Especially in this period, where we are finding it hard to win games, but I think we did quite well and we just have to keep on pushing.
“The Premier League is a marathon and we still have so many games to play for, so we just have to stick together and make sure that in the upcoming games, we learn from this, grow together as a team and try to win games and finish on a high, because we do start games well, but I think it's just the way we’re finishing the games.”