I'm not trying to pretend I know what is necessary to make ambient music, or anything at all for that matter. I did say 'practically necessities', I guess what I meant is that these are the popular tools used today. Though I see that this isn't how it was interpeted.
I made the assumption here that the poster(like many others, including myself) came to modular after being inspired by current popular ambient modular artists - R Beny, Lightbath, Emily Sprague, etc. In which case these module's would be good places to look. I realize I shouldn't have made that assumption though
That being said I see no problem with following trends that speak to you. Personally my only goal is to make sounds that I enjoy listening to, and I doubt that I'm alone there.
I'm not doubting your credentials here, but I don't think anyone has the authority to tell anyone else to 'quit immediately' when it comes to creating sounds, apart from maybe my upstairs landlord.