The office relies on behaviour in windows itself "a lot". Even office mac or office web they made themselves isn't a 1:1 replica of the office on windows.

Let alone describe it as a standard.

"this behaviour is as seen in Word 95" sounds sloppy, but it is indeed the closest they can get.

Or what else can you do? You can't just also ship a installation media of word 95 and windows into the ISO standard, right?