Don't worry it definitely gets noticeably softer after a couple of weeks, especially the seat, it should wear in soon.
Mine is significantly softer after a few month's full time work use, but it still feels strong and not too squishy. I think they make them slightly overly firm initially to adjust to people rather than too soft with people squashing the foam and eventually just sitting on barely padded metal like can happen with cheaper chairs.
Yeah, I have the leather hero, had it since August and it definitely wears in to be more comfortable than the first couple of weeks.
Will the same apply for the PLeather though? I assume yes.?