Well keeping a "pillsh" into extras-devel should not affect security in any way or certanly "just as much" as rootsh does.

It's not that by disabling redpill, users will never install .debs, they surely will and they will crash their OS and maybe even brick the phone.
It's about keeping redpill for people who know what they are doing since this is a MOBILE device and typing folders and subfolders to reach a .deb with a 15char name is simply NOT POSSIBLE FOR PEOPLE ON THE GO.

I am dead sure I'll brick my N900 sooner or later and maybe I'll whine for help, or maybe I'll find the solution my own. Messing with stuff around is simply part of my learning process that guarantees that the second time I'll brick it will be in a new and original way

For me the only thing that disabling redpill can do is postpone the time of bricking from "on my way home" to "honey I'm home, don't bother me I just found this great app"

I don't say we let the users super-easy brick their phones, I simply want a super-secret-hidden-enableable way of installing .debs as easy as I install apps from repositories for when I'm in a non-typing situation.