From my experience anything in the 7 range is good but not essential by any stretch of the imagination. Anything that is weird in any way will probably end up in the 7s even if the author of the review says that it is his favorite album of the year....
Any term related to 'prog' refers to something quite different from what Kayo Dot are doing at any rate. Progressive music in general and 'prog' metal/rock are not the same.
lol, kd and messiaen... i don't see the connection at all.
i don't mind the guys spelling messiaen incorrectly (done all the time), but a pet hate of mine has been rock critics referencing classical composers with their first name. always bugs me, though i guess its more my problem than theirs.