HCI/S2D Reserve capacity - Why is this not just automactic?

It would be just common sense that a critical alert should be generated for the system event log. This is going to be a major problem for customers who don't realize the consequences of running out of space. You think this would be common sense, but in 2021 it is not. People think the pool will work fine, because there Virtual disk has free space. If the reserved capacity is gone or the pool has 1% free space, you should have gotten a a critical system event long ago, at say 10%. This 1% pool free space customer is about to crash!!!

Thank you,

So I would love to adjust my reserve capacity to the MS-recommended specs. So.. where is this done? Not found in WAC. Set-StoragePool doesn't seem to have a param like that. If it can only be done when a pool is created, yet you can add storage to a pool later, that would affect recommended reserve capacity settings and would be rather shortsighted.

My own situation is I have plenty of free space, those before me may have expanded the pool with disks, but whatever the case is my reserve capacity is too low for recommended specs. It was noted on the Failover Cluster Validation Report, although was not a Warning or Error state and I would have missed seeing it if not for my cache disks also being too small and warning...