Potatowings says that if the F/O had been a new MPL holder he would have been very concerned in the situation he found himself in, and then goes on to suggest that it was the fact that the F/O he was flying with had 2000 hours of MEP/instructing etc that everything went OK.
How would it have gone if he had been a new CPL/IR holder with no experience other than an integrated course. You cannot say that the MPL is no good because a graduate from the course is not as good as a CPL/IR holder with several hundred hours on jets and 2000 hours of other flying since gaining a CPL.
If you want to compare the two licenses then you have to compare the standards when the course is completed ie about 200 hrs ish of light aircraft flying then a type rating for the traditional route or about 200 hrs ish of mixed sim and light aircraft but mainly sim then a type rating for the MPL. I would suggest that the only people qualified to make that comparison would be the line captains or training captains at airlines such as flybe who will be flying with graduates from both schemes.