This marked the beginning of significant erosion of T&Cs
BS. You obviously weren't here for TCK's Great Cost Neutral Pay Adjustment where credit for annual leave was erased, amongst his other slimy moves. TCK wasn't smart enough to think of most of it himself of course and many of those behind it are still here.
This snapshot is a good example of the window view. The decline has been going for a lot longer than that; it's just the gradient which has varied at times.