This is false. "Pale of Settlement" refers to part of the Russian Empire and, while some of what is today Poland was then controlled by the Russian Empire, other parts of Poland were under Prussian or Austrian control (see https://en.wikipedia.org/wiki/Partitions_of_Poland).
The Russian empire contained Poland up to and beyond Warsaw. That is by any reasonable definition a large part of Poland. This is a ridiculously pedantic and pointless argument
