Possibly due to the fact that the prices have not changed for everyone yet.
Also a lot of people on here do not buy tokens, so in that case it doesn't make a difference or can even improve the gameplay. If less people buy tokens and the people who do buy tokens buy less of them, then the game becomes more interesting for people who don't buy. Less bidding wars, less overpowered teams and such.
I think Nordeus just makes a calculation on the end effect of such a change. The people who they get the most money from on tokens may not stop buying based on this change. So the profit they gain from them may offset the losses from the people who only bought very occasionally.