Hello99 -If you want to say the Rema argues on the Hagahos Maimonous, that’s fine.
But to imply that the Rema held this to be Pshat in them or they themselves held this way is misleading to say the least!
The Quote from them which I translated above I’ll repeat in Hebrew – “Vyachol Lovoh Shom Mezorphas Sherubon etc.” Translation – “And since it can come from France which is mostly Yoshon it’s Mutter”. If they held that Rov of the oats had to be from France because there it’s mostly Yoshon, they never would have left it out. You don’t say “since it could from” which implies just a possibility, when there is a need to not only come from there, but that has to become the Rov over here.
I personally think that this was a mistake in the printing in YD 293. I told you that the Rema doesn’t mix Rov with Sfek Sfeka from YD 110:4. So he doesn’t have to hold Rov over here in the Dinim of Chodosh.
I don’t expect you to agree, but at least realize you are pushing a round peg in a square hole when it comes to the Hagahos Maimonous!