Beto's campaign has built a network that TX Dems can use in the future. That's the most important thing.
I know precinct captains from the GA-06 special election already in place to mobilize for Stacey Abrams. In races like this, just rebuilding party infrastructure can be as important as a win.
Texas is far more Republican compared to Georgia though
While Alabama, where Democrat Doug Jones won last year, is even far more Republican than Texas is.
As a Texan I even have to admit that if Roy Moore was a Texan he'd be elected to the Senate even with the pedophilia accusations.
I highly, highly doubt that. If Roy Moore couldn't win a Trump +28 state that is notoriously inelastic, he would never win a Trump +9 state.