Why is sandisk not mentioning about microsd card claases ?

I have read at many places that sandisk has stopped mentioning the class of cards in the microsd segment. 

Is this true or just a rumor ? 

My second question 

  • WHy does sandisk not make faster microsd HC in the 32gb segment. I highest i have seen is class 4 ( and now there is no mention of the class ) 

Does sandisk believe that end users really care about the class number.