Being the only one in the entire competition to awaken all their elements in such a short time, Blake received a lot of attention from the top families of the empire.
The fact that he awakened two elements before entering the main school meant that his talent level was off the charts.
The incidents involving the runic stones were not a hidden thing to the nobles, some of the noble households had taken part in the conspiracy, but all were surprised about his speed.
He was no noble meaning his talent level was not should have been mediocre or at best average, but what puzzled them the most was that Blake was meant to be affected by the runic stones even if the plan was discovered.
Although a mage's talent level didn't determine how far he/she would accomplish, they had all come to the same conclusion that it was better he was tied to their family even if he ended up useless later in life, rather than becoming a powerful tool in the hands of their enemies.