Dead against it. It would be a retrograde step for CAB, IPS, NBR and VL trains. I guess it might be a positive for Ferny Grove and Shorncliffe, but I don't see too many other benefits.
It would make far more sense to increase the 20 minute standing rule to (let's say) 25 minutes, allowing Gold Coast trains to at least pick up/drop off at Coopers Plains, Cleveland expresses to utilise standing passengers to Morningside, Petrie trains a bit beyond Northgate, Ipswich peak to Wacol.