Standardised tests should be used to collect data, but failure to score well on standardised tests shouldn't be punished. Otherwise you just give everyone an incentive to game the metric, and quality disappears.
Nonsense. For basic material, as in K-12, people have known how to write good tests for over 50 years and often have. The concepts of reliability, validity, separation, difficulty have all been polished at least since
1950, maybe 1930.
That the tests are not reliable and valid measures of learning and can easily be significantly 'gamed' and, thus, should not be used to evaluate K-12 teaching is just an unsupported myth being put out by propaganda of the AFT and NEA to protect bad teaching.