How important is math in poker?

[Good Friar]

Math is very important. Many players seem to think math is simply arithmetic and calculations. While most of these calculations are unnecessary since the decisions are often not close, you nonetheless make a decision using math almost every play. For example, suppose you raise from early position with pocket tens in hold'em, and a very tight player goes all-in against from late position. You narrow his hand range down to ak aq or jj-aa. And you would fold since in only two of those situations you are slightly aheaed, and in four your way behind. That is math, it is reasoning with quantities.

If math were not important, why would people be against bots or other computer aids