Just want to state there is a fine line of difference between someone running Coils in PF and someone actually getting Coils in DF in a rou
PF is the idea you're setting your time aside, so when you get a fight like 9 or 13 you're prepared to work through the wipes and get the clear no matter the cost.
DF in a rou is the idea you're doing this for a daily bonus, and just want to have it done in the most efficient way possible. It's something you're meant to just run to get it over with because you got like 6 more to do to snag that extra gil. Listen I can't speak for everyone here but my idea of a quick and easy rou is not guiding sprouts in the DF on a daily basis to manage those later coils because they aren't unga bunga level strats.
We're talking about the same DF that bailed out on Tsukuyomi NM because it was "too hard", and they didn't want to join the wipes. The same DF that leaves if Titania NM pops in prep that it'll most likely be a shitshow. The ones who STILL don't understand staying for the stack in E2N when this content is like 4 months old at this time even when they aren't first timers.
Putting them in the situations that require more proper thought and planning is too much for them, its why we keep bringing up TG Cid which is a boss that has extremely simple placement yet people can't manage.
You can vouch for the majority not meeting that trend and to an end I will agree, but with any piece of content coming into the limelight on a casual scale like Frontlines, Nier alliance raid, even Grand Cosmos recently, that keeps popping up even after explaining the mechanics.
Equal minded people can join a PF to run coils, not everyone in a DF rou is going to have the same thoughts especially when the wipes start happening with new people. For a better coils experience for everyone it should just stay in PF, you'll get it down fine and we can avoid the absolute headaches that it'll bring. Let alone adding in Coils when we keep getting new raids every even patch people still need to refine.