So, I see no reason to not implement this, TFT which is way more luck based got a ranked mode and its literally brand new. I usually defend riot because I feel like all people do is complain, but come on. If aram didn't get ranked because "luck" then TFT shouldn't have it. I would actually have so much fun playing ranked ARAM.
TFT is a separate game... Not lols troll mode like aram.
Because Riot can monetize TFT (and ranked play within it). They can't do that with ARAM especially with the stigma of "casual only mode" around it.
We also don't expect Riot to add the necessary balance measures to ARAM to make ranked play viable.
Games are decided at champ select in ARAM.
I think that'll lead to a pretty frustrating experience since it's something that's completely out of your control.
That said, I'm not completely against it.
it used to be because "it's not skill based; the outcome of a game is decided almost entirely by RNG"
but TFT released with ranked and gamebreaking bugs so not sure anymore
