Now that you mention it, I do recall the developers saying something in discord that they felt the oil costs were a bit high and were considering changing PoC in some manner.... sadly, my memory of the details right now are very feint. I THINK they wanted to make it not cost oil or something but I could very well be remembering things wrong.

If they completely remove the cost though, PoC will basically boil down to restarting the same stage without cost until you get lucky, which might be a bit much.