With a few major exceptions, like not preventing activated abilities, Voice of Victory is very much like the staple Grand Abolisher
This is The Monolith , the series in which I convince you to build and play more monocolored decks in EDH, and here are 7 cards that will find a home in any mono-red Commander deck
You touch on it in your last point, that there are different cases of feel-bad: board wipes, lockdown/hand hate and random luck/cascades are all different causes, but the biggest common factor in feeling bad is that you lose
Worse, a flipped Erayo does not always send a strong signal to newer players that the game is essentially over
Satoru Umezawa could slot in there, too, but is probably even stronger as a commander, offering a way to drop a Blightsteel Colossus into play with minimal effort