sof davar & shtusim- Many are machmir and dont eat Gebrokst because its a chshash chometz. The above mentioned psak doesnt appear to reflect this reality.
FYI- Many Litvishe Rabbonim will give you a similar psak because they dont hold of gebrokst themselves. The Chassidisher Rabbonim and others that dont eat gebrokst will most likely tell you that you cannot make it on erev shabbos.