I mean, this hardly seems true. Sounds like Ian Serotkin is looking for a hot take. From the .doc on the VDOE website itself [1],

  The implementation of VMPI would still allow for student
  acceleration in mathematics content according to ability
  and achievement. 

  Local school divisions will still have plenty of 
  flexibility to create courses ... School divisions will 
  also be able to offer advanced sections and acceleration 
  through the courses.

So, is Serotkin wrong or what?

[1] https://www.doe.virginia.gov/instruction/mathematics/vmpi/in...