I'm Thai but I think that reasons of e-corner programme do not make sense.
If TV programme in Thailand wants to get information from Laos by interviewing lao people, it has to accept a reply in lao language. Why did e-corner (the giving side) has to please Thai TV programme (the begging side) that much? Both languages are quite similar, even though one side may not understand 100% of another side's utterances but the context will help both sides acknowledge an overall message. Time limit doesn't matter.
Anyway, I know that e-corner has a good intention to render hospitality. So this case should not be taken so serious as to withdraw the programme. Please forgive e-corner, I believe that it will be more careful next time.