Assuming the stack is setup as an actual stack (Master, Backup, member, member), and that there is an LACP trunk with 1 port on 1 switch and 1 port on another back from that stack to wherever else in the network it goes, the network is decent enough at that point.
But you would need to do an LACP group from the server to 2 different switches in the stack if you wanted to mitigate a switch failure. Otherwise, if the switch hosting that server died, the other switches would be fine but you'd have to physically move the server to a new switch.