There is token research that creatine supplements are especially beneficial for vegans, and creatine isn't the only thing mostly found in animal-based foods. Given nutritional sciences has a history of being a rollercoaster ride, maybe it isn't the best idea to make wild claims which don't mirror how the world behaves at large.

Water and land usage is also A: grossly overstated (you can't grow anything except grass on most land) and B: cited as something against all meat when chickens, goats, ducks, geese and pigs use far less of both. At that point, substantiate or correct your statement to 'beef'.