EW play 15-17 opening 1nt. There was a long agreed hesitation before the 2nt. Opening lead went to the Q and K and then after running spades and 3 clubs declarer played a ♥ to the 9 and south won the AJ♥ but played the 4th heart which meant declarer took 9 tricks. Most of the field played 1nt+2 for +120, although there were a few +150 and a +400.
Q1: Is the pass over 2nt a LA suggested by the hesitation?
Q2: Is the defense by N/S bad enough to warrant a wild and gambling no adjustment?
Q3: If you rule that 2nt is a LA suggested by the hesitation and make E bid 3nt, do you rule that since most people only took 8 tricks this is down 1 or do you rule that since E/W took 9 tricks in this different, but very related contract, that they'd make 3nt at this table and thus you give no adjustment since the adjusted score would be worse for the non-offenders than the table result?

Help

P - P - 1♣ - P
1♠ - P - 1nt - P
2nt* - P - P - P
Opening lead ♥6