It's silly to say something like "Far too many people think equations are what mathematics is solely about". What you really mean is that far too many people think series of statements containing numbers and variables are what mathematics is solely about, and comments like this perpetuate that stereotype (ie. all math statements containing numbers and variables are equations)

And that's why arguing about word meanings is not a good idea. I think referring to written math as just math is reasonable, and referring to it as equations also is.

Edit: grammar