User blog comment:Crimson Storm Mich/Future Units Preview v2/@comment-24990755-20170309033854/@comment-31168242-20170309044913

Gumi will keep making crit units for people who don't have crit units. It's as simple as that. Some people might keep pulling spark buffers(or some other unit which isn't a crit buffer) whose buffs stack with each other. Also, Alim has just had added a new tier which surpasses the original omnis', The cost 50 and above units. Many of them carry the new atk limit raise from 99999 to 130000(There are also a few legacy omni a.k.a cost:47 units which can do this but I don't think they have the capabilities without  high tier arena spheres). With this new buff we shall now be able to nuke the thought to be unukable. My guess is that gumi is reviving the crit buffer in order to work side by side with this new buff.