Your opinions on teachers are really easy to nod your head along with, until you actually talk to some teachers about the effects that they are able to observe, directly, of the in-vogue obsession with "actual metrics" (standardized tests) on the actual, ya know, education of their students. I'm sure many teachers disfavor more testing because they know they fear their unfitness, but I think most of them disfavor more testing because they feel we are already testing too damn much, thus trading off a tangible negative short-term effect for a speculative positive long-term effect. Every hour a student spends taking a test is an hour not spent learning.

(Apologies for the totally off-topic response to your only mostly off-topic comment.)