One way to view it from the athlete’s perspective is to imagine that a male coach kissed you like this after a win. You would probably be okay if the male coach hugged you vigorously and maybe even kissed you on the cheek (especially if you’re in Europe), but likely you would be offended if he grabbed your face and kissed you on the lips. If perhaps you had a really, really close relationship with the coach maybe you’d be okay with it, but if you’re just a random player and the coach kissed you on the lips, you’d probably be offended. And you might feel even more awkward if you knew the coach was attracted to men. In that case, you might wonder if he kissed you because he was caught up in the celebratory moment or because of sexual attraction. The way the coach kissed that athlete, I would say it was more of the latter than the former.
And in this case, it’s not even the player’s coach. It’s the president of the sporting organization. So it’s very likely that these two people had little to no relationship before this moment.
One thing that could be considered in this case it so see what sort of celebratory actions Luis has taken in the past, especially with male players. Did he have a lot of physical contact with them? Did he hug or kiss them? Are his celebratory reactions consistent no matter if it’s men or women players? If he has a habit of reacting this way in all circumstances, then perhaps it can be argued that it’s non-sexual in nature. But if he only reacts like this with women players, then it’s most likely sexual in nature.