this is very much in line with the suggestion of outriggers. Good principle but (there's always a 'but'....), on model destroyers some owners slide their batteries in through the foc'sle deck aperture. A big stick coming from keel to deck level would tend to get in the way.
Notwithstanding, it would be possible to drill a hole in the keel of the destroyer and put a short rod in and make sure it really is secured in position
to maintain the watertight integrity.
The idea is sound because it is 'quick release'. As OHIO is designed to sink to her gunwhales, any tendency to over-ballast would perhaps drag her under, causing two fully attached destroyers to go down with her.
I further like the idea as the two 'outriggers' can be designed to be removed from the OHIO's hull when it is on static display.
Also, from experience, there would be no reason for the conjoined vessels to go astern as the only motive power came from the destroyers anyway (propulsion and steering).