2/ You are taught to fly in IMC by someone who most probably has NEVER had to fly in IMC.
Agree with most of your points, but have to take issue with the one above.
I did my IR with Clamback and Hennessy.
At the time, both were very experienced and were well versed in REAL IFR flying. In fact, their real-world background and the lessons imparted saved the day for me on several occasions.
Not only that, but Ray Clamback was probably the most experienced "ditching" pilot in existence.
I know that the other good IR instructors of the time were seasoned IFR pilots.