Heck, we still haven't even received a satisfactory reason for the retcon.
What, finding the Institute of War to be too confining of an limitation wasn't enough for you? Why on earth would champs like
,
,
,
, and
be in the league?
You could argue that they could of held
hostage, but if they could keep the essence of DEATH captive, then why haven't they used them to kill off the shadow isles, who pose a serious threat to the entire planet's existence?
Why would
, a fugitive from his country, appear on a TELEVISED death match? Even if he went to the Institute to find the killer of his elder, it would only take a week tops to find all of the wind technique users in the League(
&
) and interrogate them. And then he would leave, either exonerated or off to continue his search.
Why would
, who has a kingdom to build from scratch and to rule, fight in an arena? Money? For what? He can create entire cities out of nothing and have all the manual labor done by servants made out of sand(not to mention all of the rich nomads that he is planning on hosting). Prestage? He is a king, an emperor, a god who has dominion over the very earth he walks on! All other "kingdoms" are but shifting sand.
What about
? Why would he fight in the League? His lore states that he only shows up in a fight when a side is about to be overwhelmed, and then he inspires them to win. So why would he be in a fight from the beginning? That's not his style.
And
? He has places to be, things to do, and an entire planet/plane of existence to protect. Why on earth would he fight in small scale battles with little importance to the rest of the universe?
Let's see, have League have a Super smash bros type game/lore interaction, but with awesome champions with superbe lore, or have the game make sense in the lore, but have comparatively worse champion lore wise. I fail to see why you would want the second one, seeing as it would be focused on why they are in the league, rather than who they are. I mean look at Taric's old lore, then compare it to his new one. The old lore had two paragraphs, one talking about him, the other talking about how/why he came to be in the league. The new lore has several pages on who he is, how he fits into runeterra, and what he does there. Why would you want the two paragraph version?! It was worse in almost every way!(personally I think it was worse in every way, but that is my opinion)
So yes, they did give a good reason for the retcon, whether you are satisfied with it is of no consequence. And it is not Riot's job to make you satisfied or appease you(actually they did try to appease us, what with the massively improved lore and champion origins. If only some people would of enjoyed it instead of complaining about it)