I mean, a it‘s not a play on words because the saying "la melange est la saveur/epice/piquant de la vie" just makes no sense. It's not that I want things to be literal, it's just that this particular "play on words" doesn't even exist.
For a man in a an incredibly stylish yellow suit you are suprisingly obtuse. Admit that the original poster doesn't understand French and his "word play" is stupid or I will throw coffee on your jacket and you will never get the stain out.