I agree 50% with your point. Totally agree about the friendlies part. I think friendlies shouldn't be allowed to be arranged for the same day. If someone wants to play a friendly, the opponent should be given at least 24 hours notice. Then if they don't log-in during that time, the game would go ahead.
But I can't agree with the second point. What difference does it make what number a player has on his back? It doesn't affect the play. I don't care what number a player has. I've had a striker wearing #1 in the past. If you really want to be sad enough to change a number, then I have no problem with Nordeus charging (as with name changing).