Tiltyard Agon score trends

Lately it seems the Agon ratings of ALL (active) players on Tiltyard have been dropping.  Is this an expected effect?  Presumably i is caused by a change in the game pool (and probably mis-setting of game Agon difficulty?).  Presumably as new games are added (I'm guessing the current trend is related to the bulk addition of the iterated games??) their initial Agon difficulties are arbitrarily set to 0 and it takes some time for equilibrium with the rest of the game pool (and player pool) to be achieved.  Is this behaving as intended?

Note - I'm not implying any value judgement about this being a good or bad thing - I'm simply curious/