Orion XS - Generator Emergency Start - Orion In & Out Shorted, Is this condition ok?

I’m installing the Orion as a battery isolator in my RV with Chassis AGMs and House LI’s.
Input of the Orion to Chassis & output to the House Batteries.
I need an emergency switch between the Chassis to House battery in the case where the house is to low to start the House generator. Effectively, shorting the Orion’s input to output for 15 seconds during generator start. This would be done while the Chassis is off (no alternator current) so the Orion should be in the off state.
Will this impact the Orion XS?

Section 2.2 of the manual indicates so

I guess it’s a go for it and hope it’s really protected…