Wow. Hmm, how can I put this politely? As a desktop Linux user, I don't feel particularly left out in being ineligible for the hiring pool for a company that wouldn't let me use Linux. Maybe they scared away all the competent Linux admins with their negativity towards Linux?
What do you mean baseless? There were two provided links showing your distaste for Linux. One could be a fluke (had a bad day), but two shows a pattern. This, added with the mention of using Ubuntu (and not trying another distro) shows that Linux is not your forte.
I, for one, would not like to work for you. I'm not trying to be offensive; in fact, I respect the decision to cut bait when you realized you were over your head. I just don't think I, as a Linux user, would fit in your organization. Many of the good sysadmins also have this same viewpoint, so the above certainly is well founded.