Let's wait and see...
I see a lot of people are having very mixed emotions about the introduction of 6 stars maybe rightfully so but until we start getting more information we should be limiting our outrage to a minimum. Yes, I feel like the introduction of 6 starts is a little rushed based on the current state of the game but there is still so much information we don't know. It will at least a year till people start pulling 6 stars, even though they are released early next year since the availability of shards is so small it will take months to form a crystal after they are released. This is a lot of time, from now and then the game could shift so far into a 5 star driven game than the current 4 star driven game it is now that 6 stars become a unanimously welcome addition. There are a lot of ways this could go bad ( 6 star Luke Cage) but I think Kabam know that players are already angry at the game with all the bugs and crystal salt and will have taken notes from the community to make 6 stars something to look forward to and progress the game to a new level