1. It also allows you to get rid of cr@p pilots.
2. No, but more training certainly won't make them worse, and most will get better.
3. If standards were higher, less dross would get through in the first place
4. I think higher standards will reduce P2F, because it will be too expensive for the duffers to continue failing trips
5. You can always make sims better, and no practice emergency is silly, they all increase capacity, knowledge, skills, comfort with the aircraft
6. For things that are not realistic, they happen surprisingly often....