It wouldn't matter, it's not their personal opinion on the issue that they give you but a response deemed appropriate by the powers that be at Waves. Just like when you call for tech support for so many things these days and the guy on the other end of the line is reading, horribly, from a scripted manual asking you if you have turned your device on.
Yes indeed - tech support is a series of logic trees these days and God forbid you go off script:
You call tech support and upon calling the "tech" (tee hee) screen has the following prompts:
Step 1: Greet Customer with "Hello, my name is Sally - what is your full name and what product are you calling about"
......Various steps that ask you the same personal information over and over......
Step 10: Is the computer on (Y/N) if Y then go to step 11, if N inform the customer to turn computer on.
Step 11: Is the OS language US English (Y/N) if Y go to Step 12, in N inform customer that we only support US English.
Step 12: Blah, Blah, Blah
This is seriously what the majority of product support centers do these days.
In regard to the original question and answer from "tech" support, language support did change in Windows Vista/Win 7 from the previous methodology of the OS being coded in to a particular language - see this
article. Has this had an impact on "supported configurations"? Who knows, but one would think it would make things easier.