Yes - a player who achieves scout status does not trains fast...
But it like this only...
2 star will train faster than 3 star, 3 star will train faster than 4 star, 4 star will train faster than 5 star and so on...My advise is when your players is about to reach SCOUT status than it better to make him learn a SPECIAL ABILITY than to make him scout...Or just store the skill points and assign them the next season...