I think OP's argument is that string theory is probably in roughly the same state as the Bohr model of the hydrogen atom: It's got some of the essential tension

I think OP's argument is that string theory is probably in roughly the same state as the Bohr model of the hydrogen atom: It's got some of the essential tensions right, but it's probably wrong in important details and it's missing a framework in which it all just makes sense. In a similar vein, I wouldn't expect that the singularity theorems necessarily hold for some of Einstein's early attempts at GR.