Some years back I was astonished to find they had been abandoned, but took it that having 2 different exams, CSE and GCE was considered not ideal. One standard to measure achievement against seems so much more sensible.
Of course the problem is not that so much, it is the illusion that the human race is getting smarter and smarter every year and the consequential loss of usefulness of an exam that appears less able to sort the gifted from the average from those with issues.
With complaints from those taking exams now that folk are saying it is so easy (which I'm sure it's not, it's the inflated grades that are the problem more than how easy or difficult learning is) it is a difficult subject to tackle or even discuss.
I'm unsure returning to O Level is a cure-all, but maybe it marks a point where a problem is finally being tackled. Really should we care what the exam is called, just as long as it achieves the aim of measuring capability and knowledge ?