I actually like that advice - for a Mite. By second year Squirt, he probably will be a little old for that.
The key is edgework. Slow, methodical edgework to build the muscle memory. The problem with that is, it's boring for younger kids.
It's also a bit of chicken and egg thing, too. If he is a good skater, he will enjoy the game more. But, he's too young to know if hockey is really his thing, too, so doing skills could be a waste of time and money.
You'll probably have to mention generally where you are located to get recommendation on skills.