1. The phone line that was losing a ton of money

2. This is being worked on, there is cortana for cars, pc's and phones, so it would make sense for it to expand to even more devices in the future.

3. This is the point of windows 10 cloud, which recently leaked.

4. Windows is really not the cash cow of Microsoft, getting more people into the ecosystem is better for buisiness.

5. Free alternatives have existed forever, alternatives that you could argue are the same or better, recently SQL Server was ported to linux which actually should shore up its market share, and even possibly increase it.

6. True but does this actually matter that much?