Correct.
63 karma · joined July 13, 2012
The second distinction is that a projector or video monitor should duplicate the master screen, and indeed for a projector you have no idea how big the final screen is, and can change its size by moving the projector around. Video projections, similar to paper, are a proportionate medium.
Not making these distinctions is definitely an oversight of the linked article. His major point is well illustrated in his example picture, where "5 inches" has been displayed with varying degrees of accuracy, but it's clear all the monitors are trying to display something _close_ to 5 inches. Not getting it exact (±½ pixel) is a failure.