It's an interesting theory but the evidence for it is purely circumstantial.  Also, many of the features the aquatic ape theory claims to explain well can actually be explained better in other ways.  In particular, the claims about explaining brain size are pretty bogus, knowing what we know now.  It's a better explanation for things like direction of hair growth on the back.

I didn't comment earlier when I read this.  When I read an article if there is errors in the first sentence of the introduction, or a substantially disagree, then I don't bother reading the rest of the article.

For example:

. . . we can’t run but can swim. . .

We can't run but can swim?    I started walking sometime around 13 months old. When I was a few months older I started to run.  In high school I ran 2 miles and still in my late 40s I was running 10 miles.  All normally developing humans can run by age 4, unless they are a victim of accident, birth defect or disease. By age 10 they can run as fast as many adults. But, I had to be taught to swim at age 10 and I know adults who can't swim.  This statement doesn't make any sense. So beyond that why bother reading?

If you want to argue at a maximum speed of about 13 miles an hour we can't run as well as gorillas, who can run 20 to 25 miles and hour, I would say sure, but you are saying we can swim. How well do we swim compared to Dolphins?  I can run 10 miles but I can't swim 1 mile. So that opening sentence didn't add up for me.

But here is my own personal observation that you may says supports the Aquatic ape theory.

Ever notice when you go camping you always prefer a location near water?  Whether it is ocean, bay, lake, river, stream or creek most people prefer being near water. It doesn't matter if you are backpacking and carrying your water, or you are in a 35 foot motor home with holding tank and full hookups, it is just more fun near water even if you don't swim or fish or go boating.