I agree with this. We had multiple windowing environments, all arguably superior in various ways, and we had multiple office suites, all with better technology than the Microsoft versions. Then I wonder how much worse off are we because Windows and Office came to predominate instead of one of the others? How much rent seeking has gone into building Gates' fortune? How much has been lost financially by innocent users to Windows security vulnerabilities?
On the handwriting thing, I see a general decline in my children's handwriting because they spend so much time typing. That bothers me personally, since I appreciate good handwriting, and I would think it spills over into other fine-motor skills tasks.