Hmmm....well at least she is a researcher with some documentation. You basically have an opinion.
But if you need more, you should look at the research conducted by Dr. Karin James from Indiana University who does research on how the brain changes in response to specific experiences. In 2012, she did research that used MRI scans to prove that writing by hand activates parts of the brain that develop language skills while typing does not.
Also, the book The Hand: How its Use Shapes the Brain, Language and Human Culture by neuroscientist Dr. Frank R. Wilson details research revealing how handwriting, more than typing, affects us in ways we never realized. There are aspects of mental development and, as a700hitter said, social development affected by the use of the hand to create and formulate the cursive word.
The Brain That Changes Itself by neuroscientist Norman Doidge details how the act of cursive writing creates different neuropathways in the brain each time the writer executes the motor movements to connect the letters of a new word. The same process is not there in the act of typing.
In my opinion, there is more than "some evidence" being ridden for all it's worth.