Hello - I'm a software architect in a big banking computer center. Some Comment to your statement
"Keep in mind that these people whose answers are analysed below are developers, so the chances that they have been exposed already to the blockchain are far greater than regular people who do not have a solid programming or technical background"
My experience is that developers are not the people who are interested in the potential of the blockchain. They recognize it as another new technology and they will use it if required. Much more interested in blockchain are managers, business developers, banking experts, software architects and so on. I think developers are not more interested in blockchain than other people but maybe even less.