You are an incredible hypocrite by the way. You claim on the one-hand that there is no evidence for space-time warping because it has not been directly observed, and then on the other hand, you claim that the shadow object has evidence because you can observe it's shadow.
I can explain space-time warping for our buddy Tom.
Space-time warping is assumed to be existent by Einstein's Theory of General Relativity, but was not proven to be a thing. Now, though, we CAN view it by measuring the bending of light around a celestial body. Light gets bent by the gravity wells generated by 'mass'ive objects such as stars and this is a measurable effect. This in turn proves space-time warping as space is the general term for matter, and matter is non-random information particles, but the most important part is the information which subclasses energies of things such as gravity, electricity, magnetism, and excludes gamma radiation from the aforementioned group. Since light is able to reliably transfer information (Fiber optics) and is able to be interacted with (Lasers, generation of electromagnetic fields to bend a beam of light, fiber optics), then it is assumed to be matter - a photon. Since a photon is now shown to be matter, we can extend the laws of General Space and say that the General Space-time theories will apply to a photon, and this is proven to be correct as we can alter the flow of light through a powerful enough electromagnetic field in a laboratory. It's the same idea as using an EMF to bend the flow of water!