Egri vs. Coward

I've been skimming The Art of Dramatic Writing by Lajos Egri, first published in 1942, and considered a classic in its field.

His 7th chapter is "Why are some bad plays successful?" and he tackles the problem, as he sees it, of Noel Coward's popularity:

A war-weary audience, surfeited with blood and death, gobbled up his farces. The lines seemed witty because they helped the audience to forget the battering the world had taken. Coward, and many like him, came and lulled the shocked audience into numbed relaxation. His reception today would be tepid.

In retrospect, this is funny, since Coward continues to appear on the stage, often to enthusiastic applause. And somehow his lines still "seem witty".

Egri glowered at Coward,
but Coward has not soured.