This is called "judging a book by its cover".
Merely making assessments of an article after only reading a fraction of it (or the title!) is bad enough, but spreading those misunderstandings to other people is even worse - not only are you harming their understanding, but you're also misrepresenting the author's points.
In addition, nowhere near "half" of the article is praising Java 8 - the very first paragraph says "This is one of the reasons why Java 8, almost 7 years after its first release, is still widely used.", which is barely "praise", and then the rest (>80%) recommends that you not use it.
> the first half of the article was praising Java 8
It wasn't though... not sure why you got that impression? (I do think though that the text could use a few edits for easier reading - maybe it just isn't easy to understand when skimming)
I didnt read the second half because I couldnt make sense of the negative headline with the positive text.