I have no idea. And I'm not sure what you are inferring.
But then, I'm not sure of the real nature of the problem or the extent of the depressurisation, if at all. The descent seems to have been quite leisurely after the first 30 secs of oh-
How many passengers complained of bleeding ears? Don't know that either.
But I do know that there were complaints of the system not working properly which suggests that:
a) the system was not working properly, or
b) those complaining didn't know what was going on.
I also know that for the non-technically minded (most passengers?), telling them to "pull down sharply and breath normally" may not be enough.
Even the bit about the bag appearing to not inflate seems to be optional these days.
I just think that a little more explanation might help; to allay fears if nothing else. Another 10 secs worth of blurb, that's all.