That is a nonsensical statement. There is no way to have even compared present specimens with past specimens over the same terrain. To so state is grossly unscientific and falacious. We are talking about an invasive foreign species.
Belief in evolution has proven itself dishonest, and gullible again.
The fact that their movement has increased, and the fact that physical changes in these frogs can explain that increase in movement makes it far from nonsensical. Geez you are denying even the type of evolution creationists accept.