You didn't answer my questions either, except for one, which you stated you're not concerned with. Also, I did answer your questions with questions that addresses them.
I get the flu, on average, about once every 5 to 7 years, but I don't remember infecting anyone with it because people know I'm sick and I know I'm sick so we stay away from each other. With this, I might not even know I'm sick and will likely spread this to the more vulnerable. This is why it's way more concerning than the flu because it's a lot more lethal. I don't worry for myself when or if I get this as it probably won't do anything to me. I worry for the vulnerable whom I might spread the virus too, especially my elderly relatives. This is why this virus is a lot more dangerous than the flu.
As for the 46,000 dead from the flu in the US last year, well, here's a more specific answer why this virus is more concerning (other than what I already mentioned above). If this virus is and no vaccine is created, then this thing will kill a lot more than 46000 in the US in years to come on a per year basis (not likely this year or even next year as it's in its infancy stage). This virus is closely related to SARS and after 16 years, there's still no working vaccine for SARS.
Like healthcare professionals have stated, hospitals around the world are not able to handle the in flooding waves of people coming in for this virus. Every single healthcare professional will easily catch this virus from the infected, if they don't have the proper ppe. When was the last time the flu cause 7000 healthcare workers in a city's hospital to get infected in a matter of weeks because this is what happened in Wuhan? I also read a figure that this year, influenza is way down in the US because people are being more hygenic this year due to this virus. I will try to find that and post it here later
Even after I typed all the above, I doubt you'll be concerned because like a lot of people, you'll be reactive whether than proactive.