I wonder if they are from the forums? I think about this situation a lot when paddling ,I think the reality of getting back into the canoe are slim and hanging on to the canoe does not seem a great option ,I am fairly good swimmer but with all the clothes and boots and water temp i dont think i would get far.
You should practice Gill - everyone should practice.
I came out the Pack mid-loch(Goil) on my very first canoe trip, tried to get back in a few times, knackered myself failing then had to swim to shore. Have since made maybe a couple of dozen practice attempts and failed every time. Could slip into the SP3 no bother but the Pack always either flips or sinks under me.
Have had another three moments where I've nearly been out of it. Loch Long and Ullswater would have been alright(just a swim), but one day on Lomond a wake came from behind and took me by surprise and had I gone over I'd never had made it. The boat that caused the wake was offski and I had the loch to myself, was right out in the middle of it in winter and had been blasé because it was an otherwise flat calm day.
That's a good chunk of the reason you'll rarely see the Pack without the double blade stowed away. I can kneel lower and more central while using it and brace quickly on either side. Sometimes crack it out just for dodgier crossings to counter the niggling fact that I can't get back into my boat.
On occassion at meets the notion of us all getting together for a rescue practice day crops up and I really think it'd be a good idea. I know some(Col, Jas and Steven) have been practicing(the joy of drysuits) but I've not been wet in over a year and could do with a session.
It gets you rethinking everything from whether you should be attempting crossings to how you secure your gear - and perhaps as important as the recovery practice is that you're spending the time learning how to try to stop yourself going over in the first place. You can't learn to brace without taking it the all the way to(and past) the limit and you can't find the limit without going for a swim.
Even when you've practiced 'till you're confident you have to bear in mind that the conditions you're practicing in won't be as bad as those that are likely to have you out the boat for real.
Willie and Bikemec do the odd
recovery day for SotP members and the one I attended was one of the most informative days I've spent on(or in) the water, couldn't recommend it enough. Castle Semple's just up the road, keep an eye on the meet thread.
Hope those from the Lochy incident are recovering.