Honestly, it would be a waste of time, because a ladder like this isn't good for the type of player you want to target. It isn't good for mid-level players who want to experience more competitive play, it's good for high-level players who get very little out of the integrated automatch ladder because of the lack of suitable competition.
For an average player, a ladder like this is inferior to automatch in pretty much every single way.
It was designed as a way to bridge the gap between "just playing" and playing in a competitive ladder.
So is built-in automatch.
Making sure everyone is able to compete with players of their own caliber, when they want it and more times that just that one game a week you are Roflstomped by a much higher ranked player.
Literally the definition of automatch, expect automatch has more players, more data with which to make accurate matches, and less time wasted by the player attempting to find a game. You won't find better matches on an unofficial ladder that has a fraction of the players and a fraction of the data required to make sensible matches.
It also would automate away most of the hassle of being part of a ladder. Such as trying to find your opponents for that week, trying to get a timeslot that works etc. Just jump on and have a look for some dank games!
Open CoH2, click "search", and tada! You're part of a ladder.
Now how about those pesky annoying leavers, won't they still be an issue?
Well sure they will still leave/be AFK. However you can mark these people as leavers and if the remaining players in the match mark that person a "leaver" after the match, the shorthanded team will not have a decrease in points due to loosing.
That's all nice and all until you realize you need to hope 5 other players of similar skill in this very small community are online and looking for games on this even smaller unofficial ladder at exactly the same time you are. You won't have to worry about leavers because you'll never play a game.
There have been unofficial CoH ladders before. They've never worked because the community is too small and they're less convenient and functional than the official offerings. If you're a high-level player who stomps ladder games, you might be willing to accept some of the downsides in order to have more consistent matches. But an average player will find better matches faster in automatch than they ever will on a tiny little third party ladder.
ESEA and Face.it work because they have more players on their ladders than CoH2 has players period. A CoH2 equivalent would be a colossal waste of time.