Because it looks like VC are spendings ridicoulous amounts of money for hype while many startups with actual products and a product market fit struggle to attract investors because their product is not related to transformers.

It makes perfect sense... Why spend time and money on building a product in hope of attracting VCs that may like it? Instead present your idea in an intentionally vague way that makes everyone's imagination fill in the blanks in the most favorable way.