

This exact situation played out during the last coalition, where the compromise was a vote on it (because changing the method of voting without a clear mandate is unlikely to be popular) and once again everyone voted to keep FPTP, which was painful to watch.
The Lib Dems basically gave away their negotiating power in the coalition agreement for nothing but an expensive failed attempt to change from FPTP.
Note: “exact” isn’t accurate as it would be different parties but it would still be an incumbent relic of two party politics vs a less well funded party.













It’s a reference to The Mythical Man Month and (I believe) one of the parables told inside:
https://en.wikipedia.org/wiki/The_Mythical_Man-Month