Can Crunchyroll's translations (subtitles, dubs, manga) be considered official translations?
Since Crunchyroll has a license from the copyright owner, the content (including cuts / edited video, subtitles, translations, overlay text, dubbing) available is considered official.

Even though Crunchyroll does the translation, the translation is owned by the  anime studio. Also, sometimes the studio chooses how some terms are translated.