1. How does Mt use u(pokrith/s elsewhere? The term is used rather
frequently in Mt and (I suggest) it does not mean "play-actor."
2. I suggest that even the meaning "play-actor" is not unbiased;
note that Plato is one of those who uses u(pokrith/s in this sense
-- he doesn't like the theater!
3. Since when are the Pharisees "conservatives"? What are they
conserving? What then are the Sadduccees?
As I read Mt, whether the Pharisees are sincere is not the
point. They are Jesus's strongest competition -- hence he gets mad
at them, and attacks them. Two different ways to "righteousness" -
- perhaps Paul was attracted to both.