I think the criticism from an engineering standpoint is using aluminum on a heavily cyclically loaded structure. Aluminum will eventually fail over time since it has no fatigue limit vs steel.
Is the mount compatible with the longer hose (32 ft I think) version of the apex reel? If so, will you be offering them as a bundle option with the bracket?
I don't know where chargers are located in TX, but at least in CO, Oregon, and Washington I have never struggled to get free charging at my destination. There is usually some public works building that has free charging if I can't plug into a friend's house.
If you can level 2 charge at your destination it almost always still ends up cheaper to drive an EV. Assuming a 22mpg truck equivalent at $4/gall, a home energy rate of 11 cents/kwhr at home, 55 cents at level 3 chargers, a road trip would have to be more than 1200 miles each way to reach cost...
Getting the temps into the 80's should get you a good deal more power. Still a reasonable temperature for a battery to be at during at least some portion of the year.
Have you tried getting your battery temps up first? You can use the battery preconditioning via routing to a charger to get it toasty or just a deep charge the night prior.
Don't listen to them. Their testing is possibly even worse than car and driver for EV ranges. They aren't even extrapolating the 100% battery range when the test only uses 95% of the battery!