In https://sourceforge.net/p/pgf/git/ci/master/tree/doc/generic/pgf/text-en/pgfmanual-en-tikz-pics.tex at line 345 the "/tikz/every pic" example contains example instructions for "every node", not for "every pic"
See https://github.com/pgf-tikz/pgf/issues/519
See https://github.com/pgf-tikz/pgf/issues/519