Originally Posted by
MeridaQ
They actually already have this in Ex content. Prey mechanic (T10, A12S, etc) was a healing check. Digititus from A3S was a coordination check from everyone. T10 heat charge was a random pattern for tanks to react to. NeoExdeath has party debuffs assigned to roles during the grand crosses you have to position for and respond to. In V3S after animal farm she has random patterns to deal with. I have mostly tank/healed savage content so I am not as familiar with random DPS related checks.
The point being is they have had and still do have random mechanics in those fights, unending coil is their most recent rendition of this. IMO since Gordias (didn’t do Midan) they have moved farther away from using a lot of random mechanics. (A3S) This was a large part due to community backlash, see the response from unending coil having RNG thrown in during the later phases. They will keep adding random mechanics to the raids and fights, the extent is the Q.