Alex's main motive for that speech was to sow the first seeds of the revolution that he wanted to create.
Most of the people have solidified their faith in the goddess of war and combat; it's been centuries, and this faith has taken very deep roots in the hearts of everyone.
To create a place for his own church to spread its roots, he needed a method to pull apart all the old roots and make the people accept the new change.
Alex already knew that 'change' does not come in a single day; thus, today was just the first step to building a greater foundation.
With that speech, Alex instilled the idea of free will, free existence, and thirst for wisdom in every single person present for the first time.
As this was just the first step, Alex didn't ramble on for too long; he only mentioned a few key points.
Highlighted the fact that the future belonged to those who would learn and adapt accordingly and then ended the ceremony.
