Many of the lyrics in that Melechesh song are intelligible to me by the way. You must have made out the title of the song in the lyrics though, right? And obviously them screaming about Sumerian deities you've never heard of before wouldn't be recognizable or intelligible really even if they were clean singing it.
I can understand the repetitive remark, the songs individually are a bit repetetive, but the full album is a real trip that's fairly varied.
I never understand the "heavy just to be heavy" remarks. It's like the kind of telepathy metal elitists use when they say a band "sold out" for the sake of money/popularity. It just comes from you not understanding how people could like something you find too heavy, like how elitists don't understand that a band might want to make a stylistic change because they just want to play that new style. And, fyi, there is much heavier music than Melechesh.
As for your song, I'm not much of a fan of modern R&B or Pop, so this was doomed to fail for me from the start. The vocals are particularly annoying and the video is super cringy, though not in an awful way, but neither in a good way. It's just pure neutral cringe. It is funnier than some of Red's and Z...'s music vids, mostly due to the accent of the guy, but that's not a high bar to get over.