I dont understand the point.
What do you mean the stats won't be raised?
In 5th gen, once you put your pokemon in the PC and take it out, the system re-calculates the stats so it includes the evs gained through the training.
Pokémon can now gain effort values from battling even at Level 100, and stats are recalculated at the end of every battle instead of only after leveling up, much like Deoxys in the Generation III games. At level 100, a Pokémon's stats will be one stat point higher in a specific stat for every four effort points gained in that stat.
Pokémon can now gain effort values from battling even at Level 100, and stats are recalculated at the end of every battle instead of only after leveling up, much like Deoxys in the Generation III games.
At level 100, a Pokémon's stats will be one stat point higher in a specific stat for every four effort points gained in that stat.
Source: Bulbapedia