Please post where the league said the refs made the incorrect call. The league is saying that the replay assistant didn't send a certain view down to the ref. Every view showed in the stadium showed his knee being down. We see exactly what the ref is seeing. Every angle showed his knee as being down but the refs were rewinding and zooming in on arm movement and no the knee which tells me they were trying to figure out arm movement or whether the ball left his fingertips before the knee went down.
Pay attention to this quote from the second link most notable the bolded part.
"Unfortunately, we didn’t get this angle down to the referee,” Blandino said on NFL Network. “The replay official did not send it down to the referee. And that is a mistake, and that’s something that we have to make sure doesn’t happen again. You can see that the knee is down, you can see that Luck clearly has control of the football
, but the referee never got a look at this angle because the replay official didn’t send it down to the field, and that’s something that we’re going to work on and we have been working on to make sure it doesn’t happen again.”
Here is a picture of ithttp://cbssports.com...n_Touchdown.jpg
There you can see his knee clearly down with the ball still in his hand. He was down. You can cling to whatever opinion you would like but it's becoming more and more clear no one is agreeing with you.