Yeah, very true ...
I am still waiting for a digital synth, which is going off-road and does not follow the mainstream of VA, which is focused around subtractive synthesis. To have wavetables too, is great, but I guess, there is more possible with digital engines.
It's great that many modern digital engines sound so "natural" today and this should be used to implement features, which are not seen often in hardware and are more or less the strength of the digital .. or better the algorithmic domain.
What I would like to see more often in hardware is user-waveforms, user-wavetables, and tools to create and edit them. And there are some algorithmic methods going beyond wavetables. A synth could come up with a couple of waveshapers and wavefolders, which are user editable, or the one or other method of physical modelling concept, or granular-effects, or formant-effects, or convolution of two waves or audio channels, and I am sure there is more possible ... it's math after all and math is very flexible.
Wouldn't it be great to have a digital-modular-synth as hardware? There are "modular-VA" synths like the Arturia Origin, the Nord Modular, or the Solaris by John Bowen ... why not develop something "modular-digital"? Maybe the Quantum is heading in that direction, we will see.