Many of the long time swimmers that I am exposed to almost totally disregard SCM. In fact, one swimmer on my team found out that an upcoming meet is going to be SCM rather than SCY as he thought and will probably not participate. I am impressionable novice to the sport and have only come across apathy towards SCM.
Importantly, the apathy extends well beyond Masters swimmers. Ask age group swimmers what their best SCM times are or what they think of SCM and you might imagine the negative responses you will get. As I have suggested, the root of the issue is that the standard is not embraced and is barely acknowledged by age groupers and college swimmers - the future Masters generation. I don't see where the US support for SCM is going to come from and thus find it hard to embrace myself.