A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
COUNTIFS is doing exactly what it is designed to do: it counts rows where ALL criteria pairs are true at the same time. It cannot return 2 or 3 because COUNTIFS does not add matches across separate cells, it evaluates them together as a single record.
You might want to use this instead
=COUNTIF(CHOOSE({1,2,3},B6,N6,T6),5)