It's policy formulated by a State Gov't department, therefore it's not meant to be logical. I know where I work, the subject matter specialists write the report then the document works it way up through a conga line of self-proclaimed experts who all want to cover their butts & exhibit their (lack of) knowledge & eventually it becomes a policy.
I can assure you that when weighing the differences between the VW Tiguan 155tsi & the Skoda VRS, the thing at the forefront of their mind is probably lunch.