Reality is films like NTTD, Too Gun 2 etc releasing in 2021 could be the shot in the arm for film industry, and it will need it (if all the cinemas have not closed by then anyway - millions depend on that industry)
So as frustrating as it it releasing now is just not the right thing to do, in fact could be seen as irresponsible if they continued with a Nov launch date. A small fortune has been spent on this film and it’s not an amount that can be ignored the accountants will be demanding at least cost recovery or the financiers who are no doubt feeling the pinch this year will have lower or a lack of funding in the future.
Note of caution even if a vaccine is found if will and should go to those in need (and that may mean some of us on here for many other reasons than being Bond fans). But to vaccinate the remaining billions of us will not be done overnight you are talking maybe 6 months (or likely more) to manufacture, distribute and complete vaccination (search Spanish flu, history repeats itself).
So as disappointing as it may be it’s the right thing to do, but don’t bet your life savings on Spring 21 just yet - it’s in the hands now of the human race and just how seriously we all take social responsibility and looking out for each other.
Cheers 
My name is Bond, Basildon Bond - I have letters after my name!