The main point of this whole thing is to give people more reason to hold their HIVE and (fingers crossed) attract new blood.
To me personally, it doesn't give me any more reasons than I already have for holding HIVE. One commonality of people that don't hold Hive is that they don't care about holding Hive no matter what. So I don't think it would be the reason for them to stay their hand.
Will it attract new blood? I am doubtful on that one as well. Projects like POSH probably have better odds at attracting new blood than giving a boost to Hive APR.