The concept of relativistic time dilation is a well-established and extensively tested aspect of Einstein's theory of relativity. It has been confirmed by a wide range of experimental observations, including the behavior of atomic clocks, particle accelerators, and high-precision GPS systems.
Relativistic time dilation is a consequence of the geometry of spacetime and the curvature caused by mass and energy. It is not merely an interpretation but a mathematical prediction that has been consistently verified by experimental results.
Your suggestion of a hidden fundamental gravitation field function that cyclically vibrates and freezes all objects is an interesting idea, but it would require substantial evidence and a comprehensive theoretical framework to challenge the established understanding of time dilation in relativity.
It's important to note that Einstein's theory of general relativity successfully explains a wide range of phenomena related to gravity, including the behavior of massive objects, the bending of light, and the expansion of the universe. General relativity has been tested and confirmed in numerous ways, and its predictions have been consistently supported by observational evidence.
While scientific theories are open to scrutiny and revision based on new evidence, any proposed alternative would need to provide a comprehensive and compelling explanation for the wide range of phenomena explained by relativity. It would require rigorous testing and validation against experimental data to be considered a viable alternative to the well-established theory of relativity.