ahaha, you ALREADY know! There's a lot that could be said here, but I'll try to keep things concise:
Essentially, I agree with what the author is trying to say. This new-age, "positive vibes only" / positive psychology nonsense is simply not functional. I see this type of stuff parroted in so many different ways on social media and people are just eating it up. It's like sure, it's good to be positive, but you also have to be sober-minded. Being positive does not mean you should just ignore the negative. No, not at all. Being positive is about being able to recognize, assess, and deal with the negative and still be able to move forward and grow inspite of it. In fact, if you can't do that, then you're not really being positive at all. You're just deceiving yourself.
In order to heal, you must first correctly diagnose the ill. And if you're reaping bad fruit in your life, you have to go back and look at the seeds that were planted.
Doing this takes honesty, humility, bravery, and compassion. You have to be honest enough with yourself to even recognize and admit that you've reaped bad fruit in your life. You have to be humble enough enough to take on the responsibility of dealing with that bad fruit (instead of pridefully claiming victimhood). You have to be brave enough to take on the daunting task of searching for and plucking up all of the roots that bore this bad fruit (cuz it can be painful and hella uncomfortable). And you have to be compassionate enough with yourself to realize that this is not an overnight process, and not beat yourself up for it.
But the people who have allowed themselves to be possessed by this "positive only" stuff are doing themselves and others a huge disservice because they negate everything i just mentioned in the last paragraph. As a result, these people are usually the opposite of honest, humble, brave, and compassionate. How can they be honest with you when they can't be honest with themselves? How can they be compassionate towards you when they can't be compassionate towards themselves? If they can't deal with the discomfort of dealing with their own selves, what's gonna happen when you come along and inevitably make them uncomfortable simply by being human? --> These are the same kinds of insecure, feeble-minded, and bitch-hearted people that will cut you off just for having a difference of opinion or a different perspective than they do. The kinds of ppl that get anxiety attacks when you tell them the truth about themselves.
So yeah, that whole positive-only nonsense disarms people from being able to competently deal with negativity, or rather things that make them feel negative or uncomfortable. Which is really just disarming ppl from dealing with reality in general. It doesn't help that this bitch-made attitude is being increasingly supported here in western culture. It's like so many people are trying to make the world into one big "safe space", but there's way more of the world than there are any of us individually, so the more functional idea would be to simply get comfortable being uncomfortable.
That wasn't necessarily concise