Yes. I use my RX-A3080 in Pure Direct Mode with the RBH SA-500DSP sub amp, which has manual parametric EQ.
On my CX-A5100, which I normally use Straight Mode, not Pure Direct mode, I use the CX-A5100's manual Parametric EQ.
And since I only manual EQ the bass region from
40-80Hz, I don't need 10 or 12 bands of PEQ for that.
However, I see no harm in offering a 10 or 12-band PEQ for people who want it.