The baseline is it depneds on your community.
I was told by the Morah D’Assrah of my community that the Ban DOES not hold here, And the reason is we were not invitied so the Ban is not valid.
No Rav has the right to impose his views on other communities and its never been done before. (For example the Chief Syrian Rabbi was not invited so if you are Syrian you need not follow the Psak)
Ashkenzaim never imposed their views on Sephardim and vice versa.
So when it was said that the asifa Psak hold for the entire Klal Yisroel if they were there or not it is not sure and not the Psak.
Now if you belong to a community that was invited and accepted (Chabad was invited but didnt accept for example) then you must ask your rov