Yeah, we have been campaigning for a proper ranking system since forever.
Honestly I think the problem is that the developers / decision makers ( I don't want to always put the blame on the devs, since they are only following the decision from the higher ups ) are afraid to change a running system.
Every other CCG/ TCG titles already had an established ladder system when it was released and honestly I can't imagine a competitive title in 2019 without a proper ranked ladder.
PTCGO, being one of the first major TCG titles out there (predating pretty much all of the other popular titles) never put much emphasis on the competitive aspect of the game.
Based on the way they treat us I firmly believe that they are afraid that a lot of casual players would be dissatisfied with a change to the reward / ladder structure.
The same company that didn't believe in a proper monetization strategy for a digital card game also failed to realize that players of all skill calibres are motivated by a proper ladder system, especially if said system can also be used to drive content on 3rd party platforms (i.e. Twtich).
I have lost all hope for any sort of skill based ladder system and it makes me rather sad to see a game with a dedicated community and so much potential go down the drain.
The shadows of the abyss are like the petals of a monstrous flower that shall blossom within the skull and expand the mind beyond what any man can bear, but whether it decays under the earth or above on green fields, or out to sea or in the very air, all shall come to revelation, and to revel, in the knowledge of the strangling fruit - and the hand of the sinner shall rejoice, for there is no sin in shadow or in light that the seeds of the dead cannot forgive...