I wasn't thinking about the scripted installation at all. Some new users go for BAIN. Plus, you just said "more advanced." I don't think scripted installation is necessary, but we'll just disagree there. I have nothing against OBMM. I said Bash "could" replace it. I didn't say that the OP shouldn't use it.
I agree that scripted installation isn't necessary, but I maintain that using scripted installation for complex mods is very much simpler than not using scripted installation, and therefore something a newbie has good use for.
I of course also agree that BAIN is a great tool, and for an advanced user, it is much better, but I still think OBMM is easier to use for a newcomer.