Come on now, how would you feel if IC2 experimental development, or at least the addition of features, slowed down and people started taking for granted that this is how ic2 is going to be from now on.
Edit, more on topic(no, no it's not, it's still off topic...):
I was using RP in the time before machines, tubes and blutricity, so to me it remained a redstone+ mod even afterwards. I found bulky, overengineered BC automation much more fun, plus there wasn't really much need for automation at the time. I found frames amazing since I mainly used the logic to help me build silly piston contraptions, but when they came around I had taken a hiatus from minecraft, and by the time I returned the mod had stopped updating.
Early blutricity seemed trite at the very least, but the demonstrations of the more developed, more "realistic" energy system were very interesting. Without higher tier generators and machines, though, there wasn't much purpose to it at the time.
If Elo wants to go back to developing RP she should just go ahead. The arguments going on right now are mainly spurred by biterness from people that felt betrayed when RP stopped updating, and those that want to see someone who at the very least was a great modder back in action. Also, the general ball of insecurity that Feed the RF, the main "faction" of FTB, is.
My own opinion is that RP should become more of a niche mod now that there are all these alternatives. When you have competition for all-in-one, something for everyone mods, the lowest common denominator wins. It has, in fact, won. We all know which mods I'm talking about.