Grandmaster and Cavalier Crystals

So I’m sure people have asked this in the past..but I think at this level of the game kabam should really reconsider having 3* hero’s in the crystals. Literally the lower crystal for someone who isn’t uncollected only have 2-4..so why can’t grandmaster crystals be the same way with only 4 star be a guarantee with the rare chance of 5* or 6*...I don’t think they would be so much of a game breaker...I applaud all the new changes they have made being a veteran player that has played since release of the game back in 2014...but here we are 6 years later and you think they would make that one pro-player change to not only help those that are at the end-game level and those that want to grow a decent 4* roster...just my thoughts, look forward to seeing the replies on this ✌🏾