There isn't any difference between a class and object method, not in perl. Or subs, for that matter. They're all just subs. Making a method call just takes what's on the left of the arrow and sticks it in the arg list as the first argument--it's how you call, not what you call, that makes the difference.

Whether this is good or not is a separate question. I merely note on how it is, not how good it is. The current scheme is perfectly adequate for what the OP was looking for.