OK, I didn't look at the opener close enough, my apologies.I understand the other cautions you posted, but I don't understand these two.
I like the over-torque feature on the control arm motor,
but wonder if it would stand up to a raccoons strength.
I'd cut off the excess latch arm length to provide less of a 'handle'.
The vid you linked is a blogger who got the coop for free and is(or was, vid is 4yrs old)a dealer for the company...so salesman. Did you find his blog post where he showed how to attach coop to cart? Wonder if he did any followup review after using it for 4 years?
I still think that coop is too small and under-ventilated, but maybe that's just me.
Carry on, have fun, Best of cLuck.