Yes. A new hire can ask the company anything: how things work, why decisions were made, who owns what, and get sourced answers immediately, with permissions respected. Day-one productivity, without draining the team.
Onboarding is mostly a thousand small questions asked awkwardly. Heidi absorbs them, in the open, so each answer teaches the next hire too.
The questions new hires ask are also a map of what documentation is missing, and Heidi sees the gaps.