Rigor for Kindergarten?

Here's a link to the new Common Core Standards for kindergarten and what they will mean to schools in one district in Florida.   The chart at the end summarizes some changes:

Under Florida's Next Generation Sunshine State Standards (old standards):

• Students count to 20
• Ability to count forward from 1
• Work on joining and separating numbers through 10 (introduction to addition and subtraction)

Under the Common Core State Standards (new standards):

• Students count to 100 by tens and by ones
• Ability to count forward from any given number
• Fluent in addition and subtraction through 5

My niece could have easily handled this in kindergarten, my nephew, who was young when he started, would have struggled more.  As I've said many times before, rigor is more than just raising the standard expectations.  It's also supporting students so they can show they truly understand something as opposed to memorization.  For those of you who teach at the primary level, what do you think?