Does calling Post Partum Depression (PPD) "Baby Blues" under mind the severity of the condition with a cutesy name?

I had pretty bad PPD/A (mainly anxiety). After getting help through my doctor and therapist I understood what I was going through a little better. But there were still people in my life that were completely invalidating with their reaction to my depression and anxiety and that "these are the best moments of your life- be happy!".. then they would call PPD "a case of the baby blues". This would make me cringe thinking they are minimizing my struggle through PPD. With medicine (baby dose Zoloft) and therapy I pulled through mostly by the 9 month mark... I considered myself lucky as I know some women take a long time to feel normal again..

What do you think? Is it just a cutesy name for PPD or even if it is does it undermine the severity of PPD and its affects on a mother?