Frankly its a PITA as the options are to either buy expensive licensed product, or break the law and use unlicensed plain old OA. But if you are going to blame someone you are looking at the wrong people again. VMD does what it is instructed to do by the legal framework that the government puts in place. The person to complain to is George Eustice, Secretary of State for Environment, Food and Rural Affairs of the United Kingdom. VMD will only look at applications presented to them. Products licensed in EU can be recognised in the UK as mutually recognised products, but its not in the remit of the VMD to submit an application for this. As far as I'm aware, no company or individual has put forward an application for plain OA as a medicinal treatment for varroa to VMD for them to assess.
Rather than being any sort of conspiracy theory, it is more likely based on economics and a return on investment. In addition, once a generic license was approved for OA, there would be nothing to stop other companies using this as a piggy back to get their own generic OA licence, therefore diluting the market share potential further. There is no intellectual property with plain OA to protect this.
Base fee for a license application is ~ £16k. For generic OA, I would image that a license dossier would probably set you back no more than £150k for consultants to put together, unless you can get someone on the forum to do this FOC. Whilst manufacturing costs would be negligible, you would need a qualified person to release product, distribution and pharmacovigilance set up to meet meet licensing requirements. might be able to do this for £50k a year. I don't know what the market capacity is for all OA treatments in the UK is, licensed or unlicensed, but to cover annual costs that a lot of OA to sell.
Unless someone is prepare to take this on as an altruistic activity, I really cant see the business sense and ultimately this drives companies to develop medicinal products. As a businessman Phil, would you have invested in a programme the had little chance of any profit?
I'm happy to talk through the regulatory requirements for product licensing from my experiences with human medicinal license applications if it helps clarify what is needed, but I cant change the legal framework that exists, whether it makes sense or not