What was going on here?

Rating: 2/10 (24 December 2017)

My wife and I were looking through Amazon Prime and said, hey, we didn't see that one at the theater, let's watch it now.
Two hours later, my wife said, "Well, if I'd been watching that one at the theater, I would have gotten up half way through and asked for my money back."
First off, let's look at the plot premise: In 3,000 years, humanity will help the Heptapods. But only if the Heptapods show up now to teach humanity their language, which being circular, shows that there is no such thing as actual free will, everything is predestined. That's one of the major issues with ANY time travel, as it can introduce a paradox. In this case, how is it that the Heptapods were able to be helped by humanity in the first place if they hadn't come back to change things?
Second, we have the whole Slaughterhouse Five connection. My wife thought that Dr. Banks (played by Amy Adams) was reliving memories until nearly the end of the movie. I had already made the connection that she was actually becoming unstuck in time similar to Billy Pilgrim.
Third, I've since then seen many reviews on here about how wonderful the music was. Seriously? The minor detail that during the scene in the Heptapod ship when Amy goes back in and a Heptapod comes 'swimming' by sounded like the theme from Jaws made both of us laugh a little.
Fourth, even my wife saw the flaw in the plan of only having ONE translator and ONE scientist on the team. She made the comment early on - 'Come on, they had a whole team studying the aliens in 'Transformers'. You're going to depend upon only ONE person? That, of course, was the fatal flaw here. Supposedly Amy Adams was the only person who still had her security clearance. How about all those people that actually already WORK for the U.S. Military, doing linguistic work?
Fifth (and of course, the quite ridiculous one) is that if you're going to show the military of other countries, it might help if you at least show them? Instead of simply taking US military vehicles and superimposing Chinese characters on their sides? Well, that, and let's face it - they showed the ship supposedly sitting out in the middle of nowhere in Montana. And suddenly when it came time for the armor to move in, they came screaming out of nowhere, over the hill! Seriously? You've got to figure that within a week at most, that sight would have looked like a scene from the original 'The Day the Earth Stood Still' or 'The War of the Worlds', with armor and artillery surrounding the site.
Sixth - and probably about the only thing that the movie got right - was the reaction of the public as mentioned on the news. There'd be some radio wackos talking about invasion - apparently they saw 'Independence Day'. There'd be some religious people killing themselves. And there'd no doubt be some serious reactions. But at the same time ... this movie presumes that no one in the world has ever watched or read a book about an alien presence on this planet, whether it's 'Starman', CE3K, ET, or any of the OTHER movies I've mentioned previously.
All in all ... can I ask Amazon for a refund of my Prime membership fee since I ended up watching this?