surplus, your idea of a power increase will indeed cause a pitch up, but it won't cause a pull force on the control column.
[Part of post deleted, the FDR report is from a different incident and it doesn't say what I thought it said, however the above point is still valid, a power induced pitch up does not cause a force on the column.]
Right,
here is the Colgan FDR data. You can see from this that there is a significant pull force on the control column just after the stick shaker activation. This was not the result of a power increase.