Since you asked, my point.
Every 5.0 player hits the ball differently. Some will give you problems with their balls, while other's you will eat up. Knowing what a specific spin does helps you little. Knowing how to deal with different spins helps you a lot.
As said by someone smarter than me, set early, racketback in balance, stroke thru the ball. Don't matter what kind of spin is hit to you.