Now all they need to do is publish actual digital sales and merge digital album sales (however minor) with physical sales, and they will finally be up to date with the rest of the world : P
It'd definitely have some sort of an effect! Emi Maria's latest album was at #2 on iTunes, but #296 on Oricon. Plus you've got all of the singles released a week early before the physical/maxi version.
The RIAJ definitely tracks digital album sales, but the problem is that there's only ever been one album certified gold!