I deployed ~10k last month. My read of decreased origination volume + increased listing volume is that capital is spread out over more loans, ergo, fewer loans are receiving enough investment to fund. I expect this to clear up as the S1 becomes effective / BRE goes live, which seems imminent. I think the incentives were intended to try to keep origination volumes up as many wait on sidelines for the S1.
I wouldn't expect to see more incentives unless the S1's effectiveness is delayed...