After reading the recall notice this doesn't sound like the kind of problem that would cause an accident. You'd just lose the ability to disengage the clutch, which happened to me more than once on older bikes with broken clutch cables. If I owned one, I'd probably keep riding it until the parts were available. But I'd sure keep an eye on the clutch fluid level.
I waited several months to have the recall done on my 2013 F6B. It wasn't a simple fix, so I wanted dealers to get some practice on the procedure. The brake problem showed up on only a small number of the 140,000 or so of recalled GL1800s, and nearly all of them were older bikes that sat around a lot. To my knowledge not a single F6B actually had their brakes lock up.