No, it's only replayability if the gameplay is different enough for it to be enjoyable - and preferably the choices and consequences/content as well.
Otherwise it's only "replayability" for the 1% of spergs who would replay virtually any game anyway because they are spergs and want to sperg out and play it X odd way for the challenge. Which I am guessing is where those codexers might fit in - those of them that actually
finish their 2nd playthrough and don't just get bored and quit.
It's about what is replayable for the vast majority of users. If you make the dumb argument that:
Replayability is subjective,
then you make virtually any game "replayable" and that makes the word lose its meaning.
This is basically the "mario is an rpg" argument though, so it's not really winnable. You are going to argue your definitions and I'll argue mine.
It's why you can't take what anyone says at face value and have to delve deeper. It's "replayable"? Why? What makes it so? Maybe the reviewer just liked it so much that he thinks he could play it again (even if he never finished it to begin with, which happens). Maybe he just looked at all the options on character creation or dialog and assumed it's replayable - which is my guess here.