No. Because these outlets will not report power unless the power changes. They don't report in when power fails because they no longer have power. So, how long would you have to check to make sure that there was no report from the device before you call that a failure? The power could be lost and then back on in that length of time. Look at your plugs now and see if all of them have activity within the last 15 minutes.
There are several solutions for reliably monitoring power that are up here on the forum. You have to use something that will report immediately when power is lost, otherwise you have no idea how long ago the power was lost and no idea how much time is left on your UPS. I use an old wall-wart tied to a relay that is monitored by the Sonoff that i use to turn the hub off in an emergency.