The sad part about this is that, "burning" became such a hyped buzzword that I see new projects starting with 1 trillion tokens and then burning 500 billion of them. Even if the coin worths literally 1 satoshi each, or even lower, that looks like they just burned millions or thousands of dollars at least. Which creates this amazing "marketing" for people who do not realize that starting with 1 trillion and burning 500 billion tokens is EXACTLY same as starting with 500 billion tokens, there is no difference.
All in all burning needs to stop being a buzzword and start being something great again. BNB is the most famous one, very very recently the other day Binance burned literally millions of dollars in a single day, that is the proof that burning could be good, they are actually making it very scarce with this method and the value goes up thanks to it, that is how burning should be done.
I totally agree with what you said in terms of, I too believe that this is the new marketing strategy for the cryptocurrency Projects. I have always thought about it too, why don't they just print/mint the specific number of coins/tokens that the projects needs and roll from there, but I soon realized that this is the new marketing tool because those coins/token burned are actually valued based on the current price of the project and at the end of the day, they are reducing $x total amount and making the project more valuable.