For a team that is in a slump to be able to get a place in the top 4 of the standings is a good achievement in my opinion, especially this is Erik Ten Hag's first season in charge of Manchester United. With what they have shown this season, it is a belief that maybe they will continue in the next season or even be even better in the previous season. Erik Ten Hag has the potential to do just that.
So far He (ETH) has taken Man United in the right direction, won Man United the cup, brought Man United to the FA cup final, Europa quarter and 3rd place in the EPL league. This is an amazing feat for ETH in its first season. he really took Man United over that line. This man is different from Sir Alex and Man United's management needs to support him to build Man United stronger in the next season.
Overall, Ten Hag deserves to be praised. He took a big risk by coming to Man United. That second season was when he really started to apply his style. But if he doesn't have his new players in before pre-season it becomes much more difficult.
I agree with you that what Erik Ten Hag has done for Manchester United this season deserves appreciation. We also have to remember how Manchester United were before he arrived, and even at the start of the season they had a losing streak which resulted in them being at the bottom of the table at that time. But slowly they can get up and can collect point by point to take them step by step to the top of the standings. and in the end they can be ranked 3rd, it is an achievement for them.
Manchester United also won one title this season, and that was a good start for Erik Ten Hag to bring another title the following season. Don't forget too, they felt the internal problems of the club which disturbed the balance a little, but they managed to get through it well.
I think if Erik Ten Hag is given a longer chance he can revive the championship passion of Manchester United.