I'm guess the point is that anecdotally more than a few people have problems with the magnetic fastenings on some Dahons - ie - the magnets aren't strong enough to keep it folded; whereas - it seems your own experience with a Brompton not keeping together as a package when folded seems to be an anomaly to most people's experience - ie maybe you just test drove a lemon bike that hadn't been set up properly, or it wasn't folded properly when it came apart. I'm guessing but I think that's makeinu's point...

Hey - sorry - this might seem like a 'buy a Brompton' press ganging - tis not my intention at all

I think people are just surprised at the negative experience you had with the bike. The ride on a brompton isn't for everyone but it's unusual to hear of someone that didn't like the neatness or integrity of the fold.