Did you confirm this yourself or did you just read it and assumed things on your own?
Maybe I need to clarify that I meant the DT880 grey velours pads that come with the headphones.
The old T1 velours pads definitely feel different from the DT880 grey pads. I am pretty sure that the new T1 pads are different from the DT880 grey pads too. Especially since Beyerdynamic said they made a few changes on the velours pad. See http://support.beyerdynamic.com/hc/en-us/articles/203829842-What-s-the-difference-between-the-T-1-of-1-and-2-Generation-
One explanation could be a slight difference in earcup sizes so that although the pads are the same, they get more stretched on the T1 and don't feel so soft on the ears. I would like to test this myself but I don't have a DT880 here unfortunately.
Maybe black velours and grey velours are just different. You can see that on the link for grey pads they don't include the T1's after all. Plus, there is a different in net weight. Again, would be nice to confirm this too.......