It may matter to the Kaminoans who think of them as numbers and products. It may be crucial to Wookiepedia contributors who see numbers as integral to the clone's identity. But sad to say, to others, it's probably not that big a deal. They're not gonna see a mistaken number, they're gonna think "Hey, he looks and behaves a certain way and he's with that group! He's Hevy!". And they won't be wrong, either.