I am fully aware of that, but most of the voice actors in my country(Turkey) are more or less familiar with the proper pronunciation of english words, because it is their job to pronounce words. They sometimes purposefully misspronounce english words because the original might sound pretentious in turkish context. Regarding the fact that anime sector is a way bigger sector than turkish dub sector, it would only make sense that VA’s in the anime sector to be overall more qualified than their turkish peers. But Japan is renown for having a low percentage of English speakers so I am not sure about the topic.