It does have some interesting points but as others mentioned the astrology parts were a bit much.
The parts about INFJ with INFJ definitely sounded familiar, as did the INFJ/ENTP. I don't respect someone I can control and lose interest and respect. Too much sameness brings out the worst in me, and I think it brings out the worst in the other person.
I'm basing this on a past relationship versus a current (happy) one, so that could skew my read. My INFJ relationship was fantastic at points. It was someone I'd known most of my life who had the same background and liked the same things. What most would consider a soulmate, although I dislike that term. We read the same articles on the internet, read the same books/magazines, listened to the same music. He could always say, "read or listen to this," and know that it would be perfect for me and it always was. We were the same politically and had the same religious views. He always knew exactly what to say to me. That's a key to how it didn't work out. I could always figure out what he would say when I had the conversation in my head before talking to him. Plus there's something false about it. I could hear that he loved me, but I didn't feel it. The part about diving deep until they destroy each other? Meh. Dunno. To me we both held back a bit, although we seemingly shared a bunch. It looked good on paper but it wasn't right. All that said I'll love him always. We laugh hysterically together and we do get each other.
I don't understand the part about not having a deep emotional connection with the ENTP. Disagree. My emotional bond is deeper with ENTP, and there's respect for that. I know that we're supposed to be feel-y types, but I think I've based most of my romantic relationships in life on logic. If a relationship looks good on paper then proceed. Possibly a control issue, which the article touched on. With the ENTP it was chemistry at first. Ridiculous chemistry. More that normal at the beginning of a relationship. From then on I simply couldn't figure it out in my brain, it was simply how I felt. That sounds screwy, but I think about all my relationships in the beginning. I don't use my gut. My intuition (not really using this in an MBTI way, more as a word that describes) told me his feelings were genuine and positive, even though my brain said "stop, no, not a safe bet." My intuition said he was safe. Of course we didn't talk about this in depth early on, just me overthinking in the beginning. I decided to stop thinking and just go with it and see what happened.
Blah, blah, I way overshared for me. The INFJ quest for the perfect relationship is a thing, but I think this article didn't offer real solutions. Some insights that are true, but polyamory? No. I mean, choose your choice so if it's right for you that's fine. The solution is finding someone you can talk to about anything, who surprises and challenges you mentally. Someone who wants to improve themselves and supports you as you try to grow. Someone who has your back no matter what. Someone you don't have to work hard on your relationship with, but who's willing to talk about issues. That could be anyone, and a lot of different types.