1) Unlike the other games USMNT played in this year's World Cup, they did not look confident playing against Belgium last night - at any point. Belgium looked fired up/ready for what USMNT was going to do. Despite the recent success, the USMNT (like Mexico and Canada) had a ceiling, and it was clear last night that they reached it. Belgium is probably on their last run w/their "Golden Generation" that has underperformed relative to expectation. The USMNT play last night was clearly "off", sloppy, not confident, etc. Belgium played a role in that most definitely, and I'm not sure the red card controversy helped the USMNT at all. Also, it seemed a lot of the offensive progress was funneling through Pulisic on the wing. Two of Belgium's goals started when the backline flipped the field on the USMNT. It was as if the USMNT made it easier for Belgium defensively by funneling all of their offensive action through Pulisic.
2) Regardless of the truth of Trump's inclusion into the penalty review process after the Bosnia game, it is clear that the USMNT did not invite that controversy. Balogun, Pochettino, et al., have been professional, and seemed (to me) to have moved on to prepare for the game. As an quasi-related point, wherever Trump has included himself in a major sporting event, he's been a massive distraction, and his inclusion never helped his intended team of choice. The NYT reported the WH called FIFA to review it, but later NYT reporting seemed to suggest that Trump's thumb on the scale was a lot smaller than publicly believed.
3) This is the first time the USMNT team and its collective playing experience matched a manager that had the relevant experience to elevate the team. Previously, the USMNT limited itself to a park-the-bus mentality and the coaching reflected that, or the USMNT playing experience was gaining more in the European sphere but the coaching couldn't handle that. I hope Pochettino chooses to stay w/the USMNT. I'm not naive to assume that he will, but I do hope for that development.