I said LoL X which grants those keys.
Yes I do think time as a resource is fair. Grinding LoL X does help with cosmic lillith as you need those keys I mentioned (which I personally have over 80 because I hoard like a mad man and don't play the LoL frontier dungeon often). Being able to instantly get a handful would cut down some time so that you can instantly go in to that frontier dungeon.
I'm jealous that new players didn't have to sit there and hit a couple buttons every minute or two (or if Lord of the Flies had been out at that point, every 15 seconds). Time is the one fair resource in this game. I can't magically buy an extra 2 hours that only I get. Yes, it sucks on those days where I don't get to be as efficient as possible because I'm at work all day on my phone, but at the end of the day it is just a game and if I have to the shiniest new thing I can always pay for it and get it or maybe re-evaluate if I actually want something or if it's just FOMO.
BTW: I wouldn't say the grind is a rite of passage. It's just simply what the game is, which is why I made the (admittedly kind of over the top) analogy of playing solitaire and not liking that there are cards.
And in all fairness if they ever did implement this of course I would abuse the hell out of it on non-event days. No grind event today? Boom quick ironite expenditure (because should have an additional cost) and I've got all my troopers played and my ironite from 120 SoT worth of Powerslave plus what ever other goodies I picked up. I would just rather the devs focus on fixing the larger problems in this game instead of implementing a whole brand new feature (same reason why I'm against clans being released in the broken state it was and still is).