He probably refers to emergency exit seats. Interestingly, in many cases when I flew on Central European routes, people don't really rush to them, and I could get one even if being in middle of the queue.
Very true. You can be at pretty much any point in the first 50% of a queue (even on a full flight) and you're very likely to get an emergency exit seat.
But I'm revealing my 'secrets of flying Ryanair.' You'll have to wait for my book folks!