If your argument is only "here are the bWAR numbers" you got nothing.
Past 3 years:
Ryan - 467 IP, 10.35 k/9, 1.85 bb/9, 3.85 ERA, 3.64 xFIP, 8.6 fWAR (22nd in MLB)
Singer - 509 IP, 8.24 k/9, 2.88 bb/9, 4.39 ERA, 4.04 xFIP, 7.3 fWAR (34th in MLB)
Kelly - 435 IP, 8.62 k/9, 2.81 bb/9, 3.51 ERA, 3.83 xFIP, 6.9 fWAR (36th in MLB)
Singer's line is a lot closer to Kelly's than you are letting on.