The everlasting, never-ending debate on what should and shouldn't be a memory item has been around in the world of Airbus ever since. Some years ago, before a nice little modification was performed on the PTU inhibition logic, there were talks about the OEB concerning G/Y system low pressure followed by an overheat of its opposite system becoming a memory item as well. Or at least the part of it requiring you to switch off the PTU. But then they did the maths that it would take about 2 minutes for the PTU to overheat the remaining hydraulic system and decided that it was not worth making pilots memorise one more procedure. And then the modification cleared the OEB for most aircraft. These days you can only see it on some old aircraft, often flown by some second-league operator who doesn't want to invest money into clearing OEBs unless absolutely necessary.