Since burgundians so broken and need nerf, i think giving wineyards to teutons will be good buff for teutons and good nerf for burgundians.
-Good eco bonus
-Cheap stable techs
-Earl cav upgrade
-flemish revelution which give 100+ troops, so giving them extra gold is making them broken. On the other hand
Good farm discound but adventage of that hit mid and late game
Good paladins but no husbundry
No fu skirmisher and scout
Expensive, slow and very situational uu
Teutons have very open tech tree and good units but gold heavy so i think removing fr from burgundians and giving them to teutons will be goo balance change.
Teutons are dependent on gold, and as a ‘compromise’ they get lots of very strong late game options. Giving them vineyards would negate part of the trick to beating Teutons - by keeping them off gold or making them waste gold units to trash. So no, its a bad idea.