It is better than a feeling. GR cannot be quantitized. If anyone describes the present status of gravity as anything other than a mystery that we are good at predicting the movements of, they are wrong.

> GR cannot be quantitized

This is irrelevant. GR makes accurate predictions. Perhaps we haven’t figured out how to quantise it. Maybe it isn’t a quantum field. Maybe we’re mis-interpreting the mathematics.

Hypotheses are interesting. I find the variable speed of light discipline neat. But they’re just hypotheses. Until they explain experimental evidence better than GR, they will remain hypotheses.

It's not irrelevant if you're looking for new classes of predictions and new kinds of experiments - which is one of the motivations for quantum gravity.