Ashley Barnes made a very big mistake. Offensive players make bad mistakes like this on defense. His arm was very open. The referee made the right decision after VAR review. The penalty was the right decision. Burnley players objected to the referee a lot, but after watching the position, they will understand that it is pointless to protest. Tottenham will now find more opportunities. They will find more positions with quick attacks. It's a little early, but we can say that they won the match.
Tottenham need not relax, the game is not over yet, we can surely expect more drama especially if Burnley's stubborness persists in this match.