This was part of our thought process when designing the panel.
With a single panel, it should be easy enough to get used to the workflow with muscle memory. But if one wants to let go, there’s certainly no colored jacks holding your hand 
I agree it’s not for everyone but I was willing to take the chance
We did a few things different than the normal Sing To Me though:
- the 258’s have CV control over wave selection (I think)
- ring mod is replaced with a 73 VCF
- there’s a peak & trough
- the VCA has 2 inputs each