Jaigus

>I just don't like people bashing something without valid reasons

That really doesn't seem to be the case here. Like you, the article's author(and several others here) have had issues with it for their particular use-case, and the reasons are clearly listed in a well organized paragraph by paragraph summary explanation in the article. Others here who've had a similar experience at least stated they had issues with it as well, even if they didn't go into much detail about it.

And speaking of the lack of valid reasons, to be fair, many relatively new technologies like these often get significant praise/hype without many valid reasons as well, other than [X]startup/company is using it, so it should be able to work for me, or it must be an awesome technology to use.

He is a relatively popular programmer so people will still comment on his presentation (even if it is a little redundant at this point). Unsung database veterans like Tony Marston have been saying things like this for years but few people took them seriously.