Pushing the strawman argument? It's not like Kelly and Kimbrel are the only two options available.
What about Brasier? He has been worth 0.7 fWAR in only 28IP, which is essentially the same pace as Kimbrel, who has been worth 1.4 fWAR in 58IP. In Brasier's very limited career, he has a 1.69ERA and 0.94 WHIP...