So, as you say, it seems to be a matter of translating the math to English. If, during this translation, you are adding 'explanatory power', by actually tying the equations into some larger framework, I guess I would call that physics still. If it is simply translating a given example/equation set into something more easily understood with common language, which doesn't have any implications elsewhere, is that really philosophy?

This is all food for thought though, I'll need to consider what you've said, but I am at least seeing some things differently now.