Storage - Manual steps required after failure

Hey,

Have two hosts. Power management is enabled.
Both are connected to a SAN via fibre channel.

For testing purposes I simulated SAN connection failure ( brought down the switch ports for one host).
All VMs on the affected hosts gets paused.
The host enter non-operational state.

However, no failover (i.e migration or restarting of the VMs) happens.
They just stay paused until I manually unpauses them.
Why is it handled that way? Or is it the desired way to handle this kind of fault in general?
Is it possible to customize certain actions for certain failures?