That comment severely underrates the purity of the bass' design.
I'm happy that Rob likes his newfound pup (I have one too), but I find the 20/20 pups very hifi-sh - in line with their times, when basses were expected to sound like a Yamaha DX-7 synth. That doesn't mean that you can't get other sounds from it, you can dial away all treble, but the true sonic habitat of that bass is the kind of bass sound you hear on "We Built This City" by Starship. That is what it was built for. Not a put-down, just a characteristic.
The 20/20 is both a period piece and a timeless design classic.