[1.2.361] Level 140 Items

No, there is a different motivation. For the past few years they've always kept an unbeatable boss in the game. This gives a reason for progression of player equipment, consumables, and power equipment. That way at no point can someone say that they're too powerful for the game because there's always this unbeatable boss on the horizon.

Now that Pink Bean is readily beatable due to potential system and vast increases of power for all jobs, it becomes necessary to create a new unbeatable boss. I don't think it's too far out of line to suggest that one day we will be able to beat Cygnus Empress with ease as GMS players will soon do with Pink Bean. At that point, a new unbeatable boss will appear.