Any physicist here that can tell if this is the big breakthrough to a theory of everything? Or just hype? Sorry, gun shy about believing big breakthroughs this

Any physicist here that can tell if this is the big breakthrough to a theory of everything? Or just hype? Sorry, gun shy about believing big breakthroughs this year. Quantum Gravity and Testable? Seems huge on the surface. If it can be tested, then this is already worlds ahead of string theory.