Also it can be seen as Disney Feature Animation wanting to celebrate a 95th year anniversary of sorts [1]. Sure the anniversary means a lot now to the public domain, but don't forget that it is also still a big anniversary for the company itself and can be a fun reminder of how far the company has come and all the things they've done over that span of years [2].
[1] DFA itself as a division of the company hasn't existed continuously in that 95-year period, of course. It was shutdown by Eisner for a while in favor of cheaper (and mostly outsourced overseas) Disney Television Animation and various dalliances with Pixar.
[2] Including the years that Disney thought it didn't need an active Disney Feature Animation department. The Steamboat Willie logo does also feel a bit like an internal political statement in that respect, too, because it kind of also says "this company was founded on Feature Animation".
[1] DFA itself as a division of the company hasn't existed continuously in that 95-year period, of course. It was shutdown by Eisner for a while in favor of cheaper (and mostly outsourced overseas) Disney Television Animation and various dalliances with Pixar.
[2] Including the years that Disney thought it didn't need an active Disney Feature Animation department. The Steamboat Willie logo does also feel a bit like an internal political statement in that respect, too, because it kind of also says "this company was founded on Feature Animation".