gavra at work- I went back to the origins and your quote about “Pitttim geritzim’ is indeed in Eydios Third Perek but in mishna ten. I had long forgotten that mishna. However, the same EXACT mishna appears in Baitza ,second Perek ,Mishna vov (six).I got this info from the side commentators.
For the readers who dont’ know the quotation, Rav Gamliel ( I think he was the grandson of Rabbon Gamliel Hazoken)says that you can only bake small, thin breads on Yom Tov. (Gritzim meaning thin) because of “tircha’ on yom tov. The Chachomim disagree and Rav Gamliel then invokes “Bais Abba’ (his father’s house)that they only baked thin breads on yom tov. On this, the chachomim say that in Bais Abba they were machmir on themselves but for the Klal you are allowed to bake thick breads because they bake better.
Hence, gavra at work’s contention and proof that this is an example of people that take on chumros that are not required of the Klal.
Thank you for pointing out this mishna, gavra at work.