Brighton managed to collect full points by beating Liverpool. They really performed amazingly. In the first half, the two teams finished with a 2-1 goal difference where Liverpool was ahead. I thought maybe Liverpool would win. But after half time, Brighton managed to change the game and they attacked strongly and scored two goals in a row and defeated the Liverpool team. After half time, Brighton came back strongly and then they fought with excitement and they defeated Liverpool by a score of 2-3 goals. Anyway, Brighton tried hard and they succeeded in winning but Liverpool is the champion team this season so they did not play so aggressively.
It was indeed an excellent performance by Brighton yesterday, I thought that the game would end in a draw but to my greatest surprise they won the game. Liverpool have won the League competition already so the main reason why they were able to win is because Liverpool doesn't really have anything to lose at this point. Losing a game or two wouldn't hurt but they will try their best not to lose consistently
I also thought the match would be at least a draw but Liverpool couldn't come back with a win despite being even though they were ahead twice. I will especially blame Salah for this, he missed an easy goal and his performance has been a bit down lately. They may not have taken the match seriously after winning the league. Although the match against Brighton is not that important for Liverpool, I think they should have won with them. You are right that losing one or two matches may not hurt them but losing to a weaker team considering their own team's strength can be mentally damaging.