Woah, woah. Stop the bike. You've only seen 3 of the 5? If so, that's a big part of problem right there.
Are these shorts great? No. I think some of the parts are a little dull and long, and can also understand how they may be difficult to consume and process since they can be frustatingly elusive. That's ultimately the journey, however, like it is with many films. You can opt to go on this journey and explore what's going on and to see the interaction between two species develop over the millenia, or you can choose to distract yourself with impatience. But I don't think it's fair to refuse to engage and then claim they're just thought experiments.
And really, 'getting it' has very little to do with how smart you are. It's simply observation and paying attention to what you're seeing each time a human falls into the water, even the costumes tell a story. It was far from random things happening. It's comments like this that hint that you didn't really try with it as you claim. Same goes for the "I spent half the time wondering what the fuck was going on" vs. "there was never any big mystery".
At this point, I'm curious what you thought of Trey's Ark miniseries.