It's not incorrect to use "our" in this context even though the speaker's audience is international, "our" doesn't always mean "mine and yours" is can also mean "mine and someone else's," that use isn't event uncommon. We talk about "our family" to people outside of the speaker's family and we talk about "our country" to people outside of the speaker's country. It's natural.

our /ˈou(ə)r,är/ determiner possesive pronoun: our

1. belonging to or associated with the speaker and one or more other people previously mentioned or easily identified. "Jo and I had our hair cut"

belonging to or associated with people in general. "when we hear a sound, our brains identify the source quickly"

2. used by a writer, editor, or monarch to refer to something belonging to or associated with himself or herself. "we want to know what you, our readers, think"