PSOM.UK rates KZ2

[makingmusic476]

RAZurrection said:
That KZ2 will probably accrue the same aggregate.

 

How so?  IGN gave Resistance 2 a 9.5.  It's average is an 87.  IGN gave Gears 2 a 9.5.  It's average is a 92.  Why would your rule apply to PSOM and not to IGN or some other publication?