I felt uncomfortable...
...as a voyeur of that dysfunctional and abusive mother-son relationship.
It just felt so wrong.
I guess in a way it was meant that way, but they did not really make that clear because the son gets mad relatively late.
We get no real backstory to make us feel more compassion with the mother.
She is simply a clingy, meddling stalker, and there is nothing funny about that.
At the beginning it was really like they were in a relationship - a marriage that is - and she was so horribly mean and abusive, my oh my, I just cannot see the most docile son putting up with that for as long as he apparently had.
I did not understand everything that was said in the confrontation (mostly acoustically, but also I got confused who they were talking about, dead or living son...).
I thought 'good for you, son, and about time', but then we get the kitsch ending, and I did not care again. So she surfs. She only starts surfing to spite her son so I cannot see anything redeeming in that either. Yes she found closure and a little truth tea, but it did not make this film enjoyable or necessary - although I thought the ocean scenes were done quite well.
Bad taste in my mouth throughout except for the one-minute-confrontation. Have to shake it off now, or take a shower or something....
She should have watched Star Wars Episode Three and taken Master Yoda's words to heart:
Learn to let go everything that you fear to lose.
Which she does, at the end, with everything.
I get it, still a painful, uncomfortable watch.