You have a point in so far that technology to the uninitiated is too good to be true, to someone who hasn't researched it, especially those who aren't tech savvy.
However, the fact remains, that DAOs have all of the properties that community needs to run a local project.
There is a certain level of trust needed and if people didn't trust each other, it wouldn't be a community.
When I say, "trustless", the community would no longer need to trust Fred with £3000 for example. Hhe simply can't run off with the money. However, when money eventually needs to be spent, the rest of the community has to entrust someone to buy something and to come back with a receipt. If they don't come back with a receipt, then no one votes for that person to have the money to spend in future.
If there is something corrupt going on, it's easier to see and close down transaction for transaction, rather than fighting for the best part of the year for someone to open up the books.
If a "muppet" claims something can be achieved, then simply research it, not by watching another youtube video, but by actually downloading software and reading the documentation.