Can we revive that?
I guess thats a no
There were too many reg's remaining stagnant and not challenging others unfortunately, also as about a third of the regs in this community are disbanded and reformed by the same leadership every 2 months a permanent ladder like this isn't sustainable. It was suggested at the start that TGL be done in seasons, but the main idea behind TGL was to have a permanent ranking system.
TGL might be possible with a shorter format, like 1 week to fight after challenged with less per team such as 7v7 - because then teams could also be involved. However something like that would need support from other organisers in the community.