Because they have no desire in learning it. Which is a problem because MS isn't trying to sell this to you. Its trying to sell it to them. The consumers can simply buy something that works for them. Or not buy anything. They really don't care.
Its a common problem, techies only looking at a problem from their perspective. Because they are isolated in their tech bubble.
Problem is it does work and does not take long to learn but some consumers have got so lazy that spoon feeding them is the only option,sad when you consider this is the 21st century when we are moving forward etc but some users are going back to caveman days.
Also consider every modern equipment has some learning curve from hi tech TV to mobile smartphone.
Big difference between tech bubble and being lazy/unwilling to learn even basic stuff.