I think all this is a good thing. If more people make hoax papers the respected journals need to be more critical which leads to better results. Two things to note though. First, apparently one paper already drew attention for being bad before they revealed the hoax. Even if it was after publishing this still shows that you can't just publish anything. The damage might already been done but there is at least a minimal amount of self correction there. The standards in general need to be higher and a bigger emphasis should be on trying to reproduce old result.
The second thing is that they didn't chose to do this in the hard sciences. Subjects like gender and race are a much easier target for such a thing for various reasons. So I think the title is a bit sensationalist because it implies that it's about academia (or science) in general.