Seed oils? Wtf. Common sense will tell you people have been eating seed oils for thousands of years.
Ok, Doc.
If common sense is not enough to persuade you, I have several Indian "Nutting Stone" that was made to grind pecans, maize, chestnuts, hickory nuts and acorns for their oils and to have the paste dried into flour. These are thousands of years old.
Yes, the technology has been around for eons...