What exactly is a mediocre PC in your eyes? The current minimum specs is 2GB of Ram and a duel core. That is an ancient setup. If hypothetically that was increased to quad core and 4GB of ram, in this day in age (or let's say next year when the expansion comes out) that's still not a top end requirement (the so called PC master race outgrew that kind of set up years ago).
Put it this way, I'm only echoing the devs opinion that to keep ffxiv fresh and up to date, it needs to keep up to date with new gen mmos and needs the freedom in terms of hardware in order to compete.
https://m.reddit.com/r/ffxiv/comment...p_features_of/
"Our aim has always been to develop the game so that players can have the same experience no matter which hardware they play on. However, if we were to become too fixated on this and become unable to innovate, then this will cease to be a FF game." - Yoshi Ps stance