I agree one time use events are not a good use case. The main solution blockchain brings to the table is to be a long-term record keeping system for where blocks in the chain are either non-fungible or act as historical progression of actions. This usage as a short-term verification for a one-time event is not a good fit for blockchain technologies. There is a good reason why it is good enough for banking, but people associate the value on a token as what blockchain is used for when the value is self created by people in control of the blockchain(which is usually the token holders). Blockchain is simple, and people just overthink it as having more than it is because it is “computer stuff.”