IPA: /ˌɛdɪˈtɔːrɪəli/
KK: /ˌɛdɪˈtɔːrɪəli/
In a way that relates to the opinions or viewpoints expressed in an editorial article.
The article was written editorially, reflecting the magazine's stance on the issue.
Editorially → It is formed from "editor" (from Latin "editor", meaning one who puts forth or publishes) and the suffix "-ially" (meaning in a manner relating to). The word "editorially" means in a manner relating to the role or function of an editor.
Think of someone who 'publishes' ('editor') something 'in a manner' ('-ially') related to their role — that's what editorially means.