I wonder why Proseries never adrresses this issue ?

Really? CA was correct before Congress decreed up to $10,200 unemployment was not taxable at the federal level. 

Then IRS gave guidance on how to report it. Intuit incorporated that guidance.

Intuit hasn't gotten to/thought of all the state ramifications yet.

Never addresses this issue is a bit strong. And I'm not a big defender of Intuit.