You are probably correct; in public speaking competitions, including debating or mooting, participants are at a disadvantage if their language proficiency is not as high as that of other participants. Naturally, it is more difficult, although not impossible, for non-native speakers to achieve the same level of proficiency as the top native speakers of any language, however, many non native speakers can reach a sufficient level of proficiency to defeat native speakers by virtue of other merits.
You send a complaint from a citizen’s complaint to the country against whom the complaint is concerned. As a result, this country refuses to consider the complaint, and thus you close the complaint, that is, get rid You did this to me. This was the result of the fact that my complaint is still pending. I curse you
*'including debating and mooting' *'many non native speakers can reach a sufficient level of proficiency such that they can defeat native speakers by virtue of other merits'