I'll bet. Seriously, that gave me pause to consider a refresher first aid course, it's been 15 years and I haven't had any use for it in all that time but it could make all the difference.
Do it! Do it! Booking the defib course was almost the first thing I did afterwards. That and arrange to meet the people who'd CPR'd me. That was a positive and powerful experience and good for them because they'd been much more traumatised than I was.