There have been a couple, sudden, company-wide, hiring freezing while my team was in the process of interviewing (including a few individuals that I referred to the company). This is largely the reason why I say "No" when I am asked if I would refer a friend. This relates to my main point, in that there is a lot of shifting that has occurred as priorities and direction change, which causes instability in onboarding new team members, and retention of existing team members.