
okay i will explain why it's bad and why i agree on hax statement
hax, my despise towards you is positively changing from "get ran over by truck" to "get ran over by car"so instead get ran over by this little fella
back to the point:
we have players pool of 100 who are currently online ingame
we have fraction of players who want to play ranked, let's say 20
of these fraction we have a fraction of people who want to play grappling 14
and 4 to play striking
and 2 to play kicking
LoL have a huge player pool so thats a terrible example.
if toribash will ever grow to something remotely large and will stop resembling an university side project, you will be able to afford fragmentation of player pool by their specific choices, but you can't do it now, no matter how you summarize 12+6 12+2 6+2 you are still pretty low on numbers to think of that shit.
10 mods is a bit too much, but the short list of official cumpetative mods should be pretty decent, i would even say 3 mods from each category to begin with
again, i have to agree with hax as he surprisingly do understand why taking fraction from fraction of fraction of player pool is horrible idea for such small game as tb
i will bold the text so you will notice
THE MAIN PRIORITY OF MATCHMAKING IS TO FIND A MATCH UP
next priority is to match you up with player who have relative skill to you
and only after that your prefferences
don't be mistaken, we are still talking about cumpetative gameplay and cumpetative matchmaking, but these are the priorities which you need to recognise first, before "i want this, i want that", as they are fundamental
if you click "matchmaking" and wait for a hour to find an opponent - your matchmaking is a complete fail
when numbers grow - you can allow fragmentation, but when it's slim as fuck it's plain stupid.

In SC you DON'T pick what enemy race you want to face.
In hearthstone you DON'T pick what class you want to play against.
Why would it be different in toribash
In SC you dcide what race YOU play
in hearthstone you pick YOUR own deck
In the current idea the player has no say over his OWN mod. bad example.
The 5 mods idea is still fine, i have no problem with that.
It's not a perfect example, but in all fairness you do get to pick what mods you're good at. So while you pick your own deck in Hearthstone, you also pick which mods you're good at in Toribash so that when it comes up in Matchmaking you can better guarantee victory. Or when you're called upon in clan league.
Just wanted to touch on practicality with a point you said earlier: "if Killer was the best lenshu player in Toribash I think he deserves praise". This goes back to the cons of banning mods. We wouldn't actually know who's the best in plenty of mods because there wouldn't be competition. The amount of people who take Judofrac seriously is less than 10. For TK? Less than 25. By forcing players to play mods they aren't comfortable at, it creates a larger talent pool which also creates more competition. It'll be easier for you to strut your stuff in TK if people are forced to actually play you in the mod.