What is the issue with "trusting" the Tormach Hub? I can't speak for others but my use of the Hub is to be able to test hand written gcode while sitting in front of the TV and without fear of breaking tools or damaging my machine. Certainly you do not have to store anything secret on the Hub.
It is possibly just me but why would a block delete button be more useful than improvements to the toolpath display or improved probing or improved T/C tapping or...?