You're not. You're not bad at all. Please ignore the negatives here, they're certainly more a result of AI paranoia/fatigue than meaningful criticism.
Anyone reading this and who is complaining that it's too long and content-light? Respectfully, you really need to check yourselves, you're probably the one with the "internet brain" dopamine or whatever problem. This is NOT an unreasonable amount/style of words for what is said.
Your title promises a story about the spanish traders. It does not deliver, but talks about 3 other different topics that I'm not interested in and jumping between them to test my nerves. If it is about the architecture of whatever you are doing, put the architecture in the title and don't make your title an offhand comment somewhere there. Fucked up clickbite.
Yeah, I got an AI vibe off it too, and was surprised to find this. The problem is, to quote Orson Welles, "it's not as conversationally written. It's full if things that are only correct because they're grammatical, but it's tough on the ear, you see." AI writing bears a resemblance to the most insufferable marketing speak, so if you ape that kind of writing in an attempt to sound punchy or whatever, you're going to be accused of being a bot.
That would explain a lot. Grammarly went full LLM brainrot a few years back, so if you rely on its suggestions your writing will... sound a certain way.