The wrapper offset problem may very well have been fixed for films manufactured more recently (at least several months) in that the changes implemented by Kodak may have reduced the re-occurrence to the same frequency as would have been described as "normal" three years ago. I do not think I've seen a report from anyone who has had this wrapper offset problem with the latest version of the backing paper.
The problem with wrapper offset will continue to show up at least infrequently, because the problem has always been there. It has happened to all manufacturers, at various times and with various products. Frequency of occurrence wasn't large, but neither was it zero. Some manufacturers (like Ilford) had greater problems earlier, and revised their backing paper and ink accordingly. That is why Ilford film used to be harder to use with red window cameras than Kodak's, because Kodak had darker numbers.
Around three years ago (??) Kodak ran out of the backing paper it had always produced for itself, and started buying new backing paper from a high end paper supplier capable of supplying special purpose paper.
For some reason, the ink on that new backing paper interacted with some of the films, in some circumstances, at a frequency that was greater than Kodak films had suffered in the recent past. Not on every roll of film, or even the majority of film, but in a very small minority of cases, and for no clear reason. And the effect showed up earlier for some films than others. The reports about the colour emulsions seemed to appear later, but that may be due to Kodak having run out of the colour film backing paper at a different time than they ran out of the black and white backing paper. Remember, that there used to be different printing for each emulsion, whereas in recent times they were forced to go to a single common backing paper. Or it may be that the interaction between the ink and the colour emulsions is slower. In any event, it is a problem with the same batch(es) of backing paper. I could be wrong, but I don't think it has been seen with every 120 emulsion, but it may have been. As it is almost certainly the result of the film emulsion reacting to the ink, it is almost certainly emulsion dependent.
So the backing paper and ink combination has been changed a couple of times.
There are still a few rolls out there with the intermediate, potentially problematic backing paper and ink combination. And the same small percentage of that slightly older film may suffer the problem, even if most won't. Any report of a "new" problem is most likely a problem with film that has that backing paper.
I've got a number of rolls of TMY2 left from that problem batch which I kept after Kodak Alaris sent me replacements. I've exposed two from the problem batch - one shows very faint signs of wrapper offset with very high magnification scans enhanced for visibility of the numbers, but doesn't show any signs when I print the film optically. The other roll shows no signs of the problem.
I am sure, unfortunately, that the changes invoked by Kodak have made the films harder to use with some red window cameras, and impossible to use with some others (there numbers are both less dark, and there aren't as many sets of them).