I think this is a step in the right direction. Everyone can lose a portable device or it can get stolen, so protecting the potentially sensitive data is important.
I think what people are complaining about is not full-disk encryption itself, but the fact that people are not used to being responsible for their cryptographic keys.
I think we should educate people regarding this responsibility. We did it with regular keys we use to unlock our homes.
happened to my ma's computer, her microsoft account+key was not saved in there so she just. lost all her important work documents. also, what of the people who don't have another device to look up the website where the key is stored?