Yeah, Retro has a point. Let's have this discussion after 6 months with no updates.
I don't get people saying that "RP2 is outdated" because it didn't instantly update to 1.5, especially considering how 1.5 changed the redstone system considerably. I mean playing with mods (and especially a big modpack) means you're going to be a few months behind vanilla minecraft in updates, deal with it. Is 1.4.7 not fun for you anymore? Do you just need the command block and comparator that bad and can't wait a little bit? Sure other mods have cool stuff in their new versions, but that's still coming: it's not like we're just going to stay at 1.4.7 forever, just a little bit longer.
There's always going to be a mod that is the last to update, and as long as it's within a few months then I don't see the big deal. Especially such an important mod as RP2, with all of the things it adds, there really is no replacement (yes certain parts have replacements, but overall nothing really competes with it, especially for frames). And I would rather wait a bit longer for quality mods and a stable modpack than have the modpack changing (and having to regen / change my world) every single version because some mod didn't update within an arbitrary short timeframe. Or would you prefer modmakers be pressured to rush things out unfinished just to meet a deadline?
I appreciate modders who do update quickly, and I'm not trying to defend Elo (I actually don't like the way she manages her mod), I'm just saying that having the community demand instant updates or constant feedback from modmakers, and being impatient about those mods who do need some time because of significant changes, is probably not a good practice.