B&w reversal process - 1st developer Cinestill

Hi everyone, I was wondering if the Cinestill T6 TungstenChrome 1st Developer could be used as a first developer in the b&w reversal process.
The theory would be: every E6 first developer contains some sort of silver halide solvent. The first developer in the b&w reversal setting requires a silver halide solvent.
Could it be feasible?