@Sadronan Well, I considered solos to be bad for the game way before their official statement, actually even before the Iron Crown event started. Also, adding the solo even as LTM was a mistake, because it was just putting gas on fire.
Rewarding bad behavior is not OK, especially in the form of giving packs for getting downed and not leaving, which would just become a way for many players to farm the game for packs by dropping in hot areas to die quick.
There should be a mild form of punishment for early leavers, like stripping them of stats or XP for the match and putting them on a 2-5 minute timer before they can queue for another match. Or, even better, team up those early leavers and put them in premade pred matches.