I am trying to count values in a spilled array that are not blank or NA

I have a table where I have created a unique list using

=UNIQUE(IF(Name1="A",Name2,""),FALSE,FALSE)

The resulting list is a spillover array and has a blank space at the top (for the false if results) and a #N/A at the bottom (Not sure why, but not super important).

I would like to then count the unique list, while ignoring the blank at the top and the #N/A at the bottom. As of now I am just using =COUNTA(J3#)-2, but is there a way to either filter the count or filter the unique function to remove those two?

For reference =Count(J3#) returns 0 which is why I am using =CountA

I considered an =IFNA function to make the NA also a "" but that doesn't remove the space from the count. It could possibly simplify a filter function though.