What benefit would streaming plane models have?
Landscape and real time weather data makes sense. Things are changing and it doesnt make sense to have high res textures of the entire planet on users PCs. Or are you just meaning on demand download of the skin?
Data vs compute
It’s easy to send all the data in an x mile radius of the players position. Or to identify the players position, speed, camera angle, etc. render it all, compress it, and then send the computer, rendered, video fees.