Apologies I’m at the airport so I can only answer this briefly by directing you to a great Sound on Sound piece from their Synth Secrets series; which goes into detail about the engineering behind the original Oberheim 4-Voice. This was Tom Oberheim’s original design, which was effectively 4 SEM’s chunked together as a single unit. It was only when digital control components became feasible that this original design became more stable, but much of what Oberheim’s are known for with regards to sonic signiture is based on this unique architechture.
https://www.soundonsound.com/techniques/polyphony-digital-synths
I can provide other reference material tomorrow (I’m based in the UK, so please exuse any lags in communication).
I’m not suggesting that the Fundemental VCF follows this architecture, the part of your statement that I disagreed with was that individual VCF tuning is 100x more subtle than Oscilator drift. But I do hope that the polyphonic architecture within VCV allows those third party developers that wish explore the polophony approach of Oberheims and Prophets are able to do so in an optimal manner.
Not everthing in the world of hardware analogue sysnthesis is pseudoscience that only exists to infate the prices of vintage gear. 