I watched my band mate's Mesa amp (very substantially built to play on real world power itself) literally go up in smoke right before a gig when power connections got unintentionally crossed and 240 VAC got sent to the stage. Not theory, it happened before my eyes. I am no electronics expert, but I can tell you his fuses and built in protection didn't keep his amp from toasting. It was repairable, but wasn't cheap, and (talk about adding insult to injury) he got to play on a keyboard amp all night. My gear was on a Furman PL-Pro DMC which shut itself down showing "Extreme Over Voltage" in the display. I turned it off/on (to reset, per the manual) and everything was wonderful on my side. Thankfully, the rest of the stage was on other circuits.
If you play at home and your power is dependable, probably overkill. If you play out where stage power is as variable as the "inn keeper," then it is your money... protect as you see fit. Or not. I won't even get into outside, generator powered gigs... ugh.
For my gear, regardless of anyone's opinion, it gets power from a quality power conditioner or regulator. My unit has proven itself in the real world, saving my gear when not having it proved disastrous for someone on the same power circuit. No one is going to change my mind about that. And it being resettable was a bonus too (some are "one and done" and have to be replaced after successfully absorbing a hit... read the manual!!).
Like everything here or in any forum, take the advice you get and make the call based on your own conclusions. No one else paid for your gear, nor will they pay to replace it if their advice gets you into a bad spot! Best of luck to you, whichever you choose!