If That's Homemade....
....It cost someone a bunch of money. The only way to do that is to silk-screen it onto the glass, which ain't cheap even if you do it all yourself.
And if it's screened by a DIY'er, it's probably paint - what are the chances someone has the capability at home to fire frit onto glass?
Nah, gotta be a reissue. Which may mean that WCI assumed some parts-supply obligations when it bought the brand, and had to manufacture some things to meet them. Again, it may mean that. Putting the new WCI logo on the recreated part would be consistent with that - it would be an effort to guide GM owners to the new company.
P.S. - The indicia and logo aside, isn't that glass drilled in a lot of places?