Very interesting, but are you saying that having a strong elevator would add
to the problem?
I don't see that.
Here's a good discussion, that includes accelerated stalls and deep stalls -- which sound like possibilities for what you experienced.
It talks about how, in a deep stall, the turbulent airflow from the stalled wing can blanket the control surfaces at the tail.
But having a weak elevator (or horizontal stabilizer) doesn't seem likely to help