Title is a bit sensational: Should really be "1/4 of SF charging stations are broke". They rounded 22.7% up to 33.3% bypassing the more logical/sensibleness 25%
Though I agree that they should not use the term "dud" to refer to chargers that are technically working but non-functional due to a design flaw (cable length). Though of course even 27.6 should round to 25% before it rounds to 33%...
I've run into a few stations with short cables, but none that couldn't reach the charge port if I parked in the other direction.