"Religious pedestals" of all types, and in most instances, are likely to irritate and/or alienate someone whenever they are encountered.
I agree with you that there is no point to going to "Holy War" with anyone over their choice of technology , but I understand why some who have been involved for years in the development of the web are suspicious of any and everything that has Micro$*ft's name on it as it applies to the WWW.
Years of dealing with the "eccentricities" of IE, the "improved but still 'borken' " browser that is IE7, and even the recent activities of Micro$ft in attempting to make MS-OOXML a "standard" have left some feeling "less than enthusiastic" about embracing any technology that is, or appears to be, driven by Micro$ft.
Linux hosts have been able to "run" asp stuff for years (chilisoft, etc) if they wanted to, and there is Mono for playing in the .NET world, but make no mistake that the "asp and .NET worlds are belong to Micro$oft."
The nice thingis that there is no shortage of hosting available for those that want to work and play in these "Micro$*ft worlds", so there is plenty of "choice" available.
While there may, or may not, be any real value in doing that, it seems to me that it would be a kludge, at best, that I would rather avoid altogether if I wanted to use that technology; just using an ASP.NET friendly host seems to be a much better solution.
I don't believe that DreamHost should even try to be "all things to all people", and I rather enjoy having DreamHost as a "clean well-lighted place" that focuses their time and attention of maximizing the utility of "open" platforms.
The best, and most accurate, answer to questions about ASP and .NET on DreamHost, in my opinion, is a simple,"Nope, not here!" but there is no reason that answer can't be delivered in a non-antagonistic manner (and maybe even with a smile and or a wink).