It always seemed to me the 2-3 shift was harder/clunkier when you were barely on the throttle....... and the converter is “coupled”.
As soon as you give it a little gas to slip the converter a bit...... it smoothed right out.

The shift feel gets absorbed by the slipping converter.

I found it to be very predictable....... want a less harsh shift??? Just shift when your on the throttle a little.