VMware ESXi - Dormant VM started

Original query, unchanged.

let vm_p_off =
VMwareESXi
| where TimeGenerated > ago(14d)
| where SyslogMessage has ('VmPoweredOffEvent')
| extend DstHostname = extract(@'\[\d+\]\s+\[(.*?)\s+on', 1, SyslogMessage)
| summarize LastPowerOffTime=max(TimeGenerated) by DstHostname
| where datetime_diff('day',datetime(now),LastPowerOffTime) >= 20; 
let vm_p_on =
VMwareESXi
| where TimeGenerated > ago(14d)
| where SyslogMessage has ('VmPoweredOnEvent')
| extend DstHostname = extract(@'\[\d+\]\s+\[(.*?)\s+on', 1, SyslogMessage)
| summarize LastPowerOnTime=max(TimeGenerated) by DstHostname
| where datetime_diff('day',datetime(now),LastPowerOnTime) >= 20;
let off_vms =
vm_p_on
| join (vm_p_off) on DstHostname
| where LastPowerOffTime > LastPowerOnTime
| summarize p_off_vm = make_set(DstHostname,200)
| extend k=1;
VMwareESXi
| where TimeGenerated between (ago(24h) .. datetime(now))
| where SyslogMessage has ('VmPoweredOnEvent')
| extend DstHostname = extract(@'\[\d+\]\s+\[(.*?)\s+on', 1, SyslogMessage)
| extend k=1
| join (off_vms) on k
| where p_off_vm !has DstHostname
| summarize rec_p_on = make_set(DstHostname,200)
| extend hostname = iff(array_length(rec_p_on) > 0, rec_p_on[0], "")
| extend NTDomain = tostring(split(hostname, '\\', 1)[0]), HostName = tostring(split(hostname, '.', 0)[0])