No. Most parents don’t care what your swim program system is. They care about three things:
1) Will their child learn how to swim?
2) Does it fit into their schedule?
3) Is it within their budget?
They’re more worried about making the most out of their time and effort to bring their kid to swim lessons. They want progress, they want success, but they don’t really care how you order your level structure. It isn’t important to them.
That isn’t to say you shouldn’t have a structure or a plan, but you don’t need to drop thousands of dollars licensing a swim program to be successful.