Anonymous participant 345 seminars are allowed for the DTV. If an entrepreneur sets one up that is acceptable to a number of embassies then good for them. The DTV will not get cancelled on the basis of this. Personally believe they will not change any of the requirements.
Anonymous participant 345 why hopefully? You get your DTV why concern yourself with how others obtain theirs. You don't make the rules. If some embassies accept then great. A Thai entrepreneur has done a good job in providing a service.