It's not a bad idea at all.
I'm thinking what we have in place already is OK. Perhaps it could use some tweaking.
I've used ADV on more than one occasion to great effect:
Needed a brake caliper in Green Bay, Wisconsin, 'freeflow' was at my location within 30 minutes!
'Hit a cow in baja.' I had so many offers for help I had to choose the most convenient for ME!
I had another ADV riders trailer for 5 months..YES 5 months!
The online help for tips and ideas and directions and places to stay in invaluable.
I think the idea is to put yourself out there and trust that 'someone' is going to come and help...it may take time..it may cost some $$$$...but 'if you post' they will come.