Segura is hitting just as poorly as Elvis for three times the price. Popular trade target Kolten Wong has been even worse.
It's not like there was some surefire 4 WAR 2B on the market, it's a low ceiling position across the league with like 5 really good players, and none of them were realistically obtainable. Frankly, even if they were, I'd probably rather put resources elsewhere. MI is the deepest part of the system.
Elvis has extra value to this team because he can backup Tim comfortably at SS. With someone else in that spot, do we feel pressured to keep Leury for vet SS insurance? I'd rather spend ~$9mil on Elvis + eating Leury's contract than keep Leury and spend that $9mil on Segura who currently has more K's than total bases.
Romy and/or Sosa will likely force the issue soon enough, and Hanser and/or Elvis are easy to part with given their low cost. It's really not worth getting your undies in a bunch at this point.