No, it's true. They fall out. When I run, I hold the cord up high so it doesn't pull, and I still need to push them back in from time to time. I know people, including b_b, who can't even get them to stay in for any length of time. They aren't shaped well for everyone's ears. It might seem weird because they might fit your ears well.
Jogging with apple earbuds is the worst. They fall out every eight steps and then your sweat soaks into the mic and kills them permanently. It's spectacular. Now you don't need to worry about that because they'll fall into a puddle long before... actually, watch this space. I bet within two months someone is making an iSweatband that goes around your head to keep your fucking earbuds in your ears.
This is crazy... I must have really oddly shaped ears. The only earbuds that have EVER stayed in my ears consistently are the Apple "weirdo" shaped ones. You know, these things: All other earbuds just fall out. Is my experience really that unique? Nobody has ever mentioned me having weird-shaped ears before, and I've done a lot of different hearing tests over the years... Weird...
I've had the same experience as you, that generation of Apple headphones are the best thing I've had my entire life. I guess we're the odd ones out.