In San Diego, prior to the 2018 election, a local “50%+1” rule was a loophole known to every political insider. This allowed candidates with significant Name ID to “win” the election outright in low-turnout June primaries. In fact, more than half of San Diego’s elections never even made it to the general election ballot.
Most voters assume that the important stage of the election is the general election. That is why turnout is often DOUBLE that of a primary.
Before Measures K&L, a loophole allowed elections to end at this early stage.
What Measures D, K & L did was eliminate the confusion, close the loophole, and ensure that important decisions are made when the most people participate.