Are role actions a nerf?

[Neophyte]

Why should I go in a DF and spend 5 minutes talking about what spells to use?

If you are talking about normal trials/24-man: Just have protect slotted in advance, who cares? What are you missing then?
In 24-man you can switch it out if you want after the first boss. If you want to. If not, no big deal.
If it's true what another one here said skills are sloted automatically if you don't want to do it yourself.
Why do you care if you don't want to use Rescue, Break, etc. anyway in a low skill environment with strangers.

If you are talking about savage/extreme trials: Take that goddam minute! This is not a scrub random dungeon.
Who cares if we have to announce which tank takes which add, which position everyone goes, etc... anyway?
Yesterday after an wipe in a Zurvan kill we actually discussed what went wrong. What's the problem in saying, "btw gonna slot CS now instead prot" (or Rescue if you are often tethered to peole who run around like headless chicken in tether phase).
Those are supposed to be the challenging contents. One additional part to have some different strategies is nice there.
And the absolutly baseline of those are: Be able to talk and to adjust.
Do you know how OP cover+tempered will in Sophia Ex is? Do you know how OP rescue and Surecast will be there?
While average dps need 3 minutes to announce there number finally anyway, I'll just say "You prot, I rescue?"
Or, if like in A3s heavy status is useful "You prot, I heavy?"
Or both use break/rescue if no esuna is required.

I'll just have my 2-3 macros switching my skillsets and placing my skills on hotbar and will be used to it after a day.
If some1 is too lazy, too stupid or too insecure to switch now and then, just keeps his skills and keeps to the dungeons, trial roulette, normal raid and 24-man.
Lazy/Stupid/Insecure people who think a single 4-word sentence about strategy is to much don't belong into savage&Co.
If they join there will be much, much talk anyway because of them.