I just read this, and putting aside that it's already a few months old (and thus outdated), I think his arguments are a bit flawed because he is rebutting each point with an individual argument. In isolation, he is right about each of those things. The problem is they're all happening simultaneously, and that's the ultimate reason why I think Netflix is going to suffer. They could withstand any given one of these things happening (licensed content being reclaimed, original content being produced by studios who will soon be producing for their own services instead, content being "Out-quality-ed" by competitors, spend not being able to match these new competitors), but I don't believe (and the article doesn't make a case for) how they can withstand them all at once. It's that all out attack that is going to lead to more people leaving the service and choosing one (or more) of these others instead.
Additionally, again, comparing Netflix's past few years and the competition they've dealt with is irrelevant to their upcoming battle. These puny services that haven't made a splash like YouTube Red and CBS All Access (not to mention the others the article brings up which are even less successful) are simply not comparable to HBO Max and Disney+. Nor did they have a substantial catalog they were pulling off Netflix (CBS never licensed much to Netflix to begin with). Considering this, to me "Netflix has dealt with past competition just fine, so they'll keep being just fine," is a weak argument.
I guess we'll have to see, I think Netflix is pretty close to the maximum number of US subs it can realistically have without cracking down on account sharing (which I don't think they'll do) and most of its growth from here on out will be worldwide.
Disney+ is of course going to do well, especially when all of that original content starts flowing in the next few years. I do think it would be a good idea for Netflix to stay priced below HBO Max though.
Pretty interesting article on how Norsemen producer marketed the series to avoid getting lost in the shuffle. I haven't checked it out, but have noticed it popping up in my list of featured titles.
Interesting read, you see the same sort of thing sometimes with Indie devs complaining that Steam doesn't do enough for them when they really need to make an effort to increase visiblity of their game as well. We're well past the point for TV, movies and games that there's so much content that unless you're a major release you typically need to do something to stand out.