Can someone explain the analog to digital thing he's talking about? Can digital software not reproduce any sounds his boards can make? If not doesn't he just lose all those sounds when he converts the sounds to a digital format, making it a mostly pointless exercise?
This is a weak metaphor, but a digital monitor can reproduce a fine work of art, but synthesizing (or modelling) the look and behavior of real oil paints digitally is a challenge.
Likewise, getting the algorithms just right and in the right orders and quantities to replicate everything analog modular synthesizers can do is very tricky, though theoretically possible.
