Although Fujian did make at brief appearance at the end of last season, it is quite new, although it does have some of the mutations seen in human isolates after the 1968 pandemic (those born after 1968 should be paying attention).
There are some old flu stories that go back to 1918, but Fujian is quite new and there will be many more stories.
I don't think so. My mother has it and is sicker than she's ever been before. (This is a woman who's survived a LOT.) My daughter's best friend went into the hospital last week with a fever of 106. (No, that's not a typo... 106.) My MIL is a nurse and she's been introduced to her first case of this flu. For the first time in 25 years of nursing, she's very concerned. OTOH, I've seen folks in close contact with these cases who get sick, but no more than normal. I think it's hitting some people harder than usual this year.