I'm not sure those are corrected grain. I have been buying Tramezzas for over a dozen years. They are my favorite shoes, because in standard "D" widths, they fit my reltively narrow (particularly narrow heeled) feet very well. I also feel like the use of the leather "midsole" (vs. cork or cork paste commonly used) gives the shoe a bit more substantial feel. I've also felt that whatever sole leather they use on the Tramezzas (with the odd exception of one pair I have) is at least at the same level as Edward Green and VASS (a definite step up from Alden, in my experience).
While lasts change over time, particularly in the toebox, to follow trends, I have, over the past several years, noticed other changes to the Tramezza line. The last itself seems to have gotten slightly wider -- more than just the shape of the toe, but through the arch and instep -- which is kind of a bummer for me, but possibly better for others. The shoes are almost all 360 degree welted now, whereas previously the heel was not welted (I wonder if this goes along with the slightly wider last). The soles no longer have closed channels; the stitching is exposed (I've noticed this on recent Bally Scribes as well). I'm also sort of bummed that they don't have the black cloth label in the inside anymore.
Also, the leather has changed, and appears shinier or waxier -- almost like corrected grain. I do not believe it is corrected grain leather, though. If you put just a couple of drops of water on the leather, it immediately soaks into the leather and makes dark spots. I wonder whether Ferragamo has switched to using more of a "crust" type leather, which is then dyed and polished in-house, giving this look. In person, the leather used on recent Tramezzas and St. Crispins I've seen in person appear very similar. This new leather actually creases less, in my experience, than the leather previously used, but also scuffs easier. Scuffs, however, are easy to polish out. General finishing of the shoes appears about the same as in the past. Better than Alden, not as good as Edward Green, with curious variations between models.
While I'm not a fan of some of the recent changes to the Tramezza line (least of all, the price increases), after some initial skepticism, I have to say I am a fan of the new leather.