Not that I know of. If you keep feeding your dragon smaller crickets as he/she grows, they'll just eat more crickets due to the size. Getting larger crickets as your dragon grows saves money actually. The main reason for the size of crickets with dragons is to make sure you don't feed any crickets that are too large that will cause impaction or lack of proper digestion.
I said it wouldn't grow as much - which may have been poorly worded. I still didn't say it wouldn't grow. I have seen cases of snakes being fed rodents that are too small which does not allow for the head of a snake to grow as it should - and allow for it to stretch to eat a proper sized prey item. But, who knows, I've seen several conversations about it, too - but *shrug* it's the internet. It and I could could be wrong.