ubetiski- I agree. Walt did not expect DL to freeze in time upon his passing. I think what bothers people about attractions closing is that they sometimes are not replaced with something new and exciting. Justified or not, that feeling has become more pervasive lately. 20k, Sky ride, Rocket Rods, etc, have all disappeared without a real replacement. If CoP was closed with the announced intention of reworking it or replacing it with (insert new exciting attraction here), I don't think the complaints would be as loud.
Also, closing Timekeeper at the same time just raises more suspiscion. Two Tomorrowland attractions shut down at the same time without a clear plan for the future doesn't come off as the way Walt would do it.