I agree as to the importance of the b-bender mod in the history of music.
But as a commercial proposition... well, consider Warmoth has to consider return on the investment required to program, QC, and market the B-bender rout, rather than any kind of judgment as to the musical merit of the b-bender doohickey. CNC programming ain't free and getting it right requires multiple iterations of QC, and any extra time a body stays on the CNC table is time some other, simpler body is not being cut. It seems likely that the additional number of units Warmoth could move by adding a b-bender rout to the array of options is not estimated to be sufficient to recover the investment in a reasonable time.
Just my opinion, and worth every penny you paid for it.