Hopefully not 30% of their pilots though. Those first in the firing line are likely to be lower skilled employees who the company haven't already made a big investment in and can be replaced easily and trained up quickly once things pick up. Higher skilled workers whose performance is more critical and require a greater training investment in time and money are more likely to be kept on, though possibly on reduced conditions. Where a reduction is unavoidable, it might be mitigated by offering early retirement, job sharing, part time or casual with a place at the front of the queue when hiring restarts.
Sympathy to all affected though, not just aircrew.