Less is not more

Nowadays it has become trendy for people to say "less is more", for example when you create a presentation, you may hear someone giving you a feedback "less is more". Sorry, less is not more, less can never be more, less is less, we can say less is enough, less is sufficient, less is good enough, less should be OK, etc but less cannot be more, if less is more then what is less? So let's stop using these illogical statements, I don't know who comes up with these and then how people take it up without challenging it.