HaLeiVi: Torah is Torah. I don’t think there’s a reason to hide Shittos. It’s a Shittah that’s been rejected. There’s no reason not to learn it. We don’t wipe R’ Hillel out of our Gemaros in Sanhedrin. It was a Shittah, they were allowed to have it, and we hold that they were mistaken. Rav Moshe Taku (who is quoted in Tosfos) says it explicitly. One would think that if a relatively early Ba’al Hatosfos held of a Shittah that the rest thought was K’firah that someone would mention it. They don’t. It took the Rambam to mention it. There are many Tosfosim that seem to go against our current conceptions of Ikkarei Emunah (see Niddah 16b and Yevamos 66a, I think). That is because our Ikkarim are based on the Rambam and the other Rishonim weren’t Meshubad to them. I think it is dishonest to make anachronistic assumptions about the Rishonim that they clearly didn’t have themselves and one cannot properly learn P’shat in these Rishonim here if you refuse to accept what they’re saying.
That aside, I think Rashi is very, very clear on this. Even if you want to Kabbalistically explain away Rashi in Avos (where he seems to explicitly be coming to argue on the total noncorporealistic Shittah), Rashi to B’reishis (which is clearly based on Bava Basra 58a) and Rashi on “Lo Sa’asun Iti” in Avodah Zarah there are more than clear. This is his Shittah and we have rejected it.