I care about Rolemaster although I'm not sure what the goals of OIC are either.
I've managed to spread the joy of Rolemaster through various extended family members and they love it so hopefully they'll also pass it on to their friends and so on. Fortunately, they're in a somewhat more central location in the UK than myself so hopefully they'll be asking some questions of their local game shops.
In the west most tip of Wales there's not a whole lot of gaming shops (like zero) but if there was, I'd be pestering them to get in some Rolemaster products!
As a product, it does look to be somewhat dated. I've mentioned my disappointment regarding the interior illustrations of the RMFRP books in the past (which were simply re-hashed from RM2) but that was before I got my hands on some of the more recent stuff (Races & Cultures & Combat Companion) which improve things dramatically although they're still in b&w.
I've not played a whole variety of RPG myself but what I have played has come up short compared to Rolemaster. All other RPGs I've played though have been full colour throughout - it seems to be what gets it picked up off the shelves in the first place. It doesn't matter just how good the product actually is, if it's not being picked up off the shelves in the first place, then it's just not going to be played.
Like I said, I'm in the west most tip of Wales and it's been probably over 20 years since I've been in an actual games shop so I can't say how all the RPGs compare visually on the shelf - I can only comment on the ones I've played with other people.