As an A320 TC would like to make the following observations.
1. Regardless of flare mode, when you pull hard back on an A320 sidestick at 30ft, the nose goes up. Otherwise, manual go-arounds would be, to say the least, interesting.
2. Spool up. High bypass engines spool up slowly. I imagine most jet pilots would expect a delay between selecting TOGA power at low power and obtaining the commanded thrust. That is normal tubofan behaviour.