That's because some interested parties have advertised containers, because they are good to sell as pre-built stuff, nice to sell VPS and alike etc, while pure

That's because some interested parties have advertised containers, because they are good to sell as pre-built stuff, nice to sell VPS and alike etc, while pure IaC is useful for anyone and invite NOT to be dependent on third party platforms. It's not a technical matter, it's a human, economical matter and actually... Most people are poor, following the largest scale means following poverty not a good thing.