Ilderton sent off Millers midfielders David Noble and Michael O'Connor - but it was the match official's own behaviour that angered the controversial Rotherham boss.
Evans claimed: "The referee was totally obnoxious rude and embarrassing to me and my staff throughout the match and at half-time. I will speak to the Football Association on Monday. We will do it properly, as we are obliged to do, but I have to say that the words he used staggered every one of us."
Evans took issue with both dismissals and also claimed the second of Billy Kee's match-winning goals should have been disallowed.
The Scot said: "In the case of David Noble, I don't think (Burton manager) Gary Rowett thinks either challenge deserved a yellow card, I don't think Gary Rowett would argue that Billy Kee handled the ball in the build-up to his second goal and I don't think Gary Rowett thought Michael O'Connor stamped on one of his players.
"He (the referee) has been the key player for me - the real focus and the centre of attention - and that's because of his performance."
Noble was sent off on the stroke of half-time after picking up two yellow cards for tackles on the lively Jacques Maghoma in the space of four minutes. Maghoma was also the victim of an alleged stamping incident in the 86th minute which resulted in O'Connor being shown red before Andy Warrington kept out Michael Symes spot kick.
Kee celebrated his return to the starting line-up in place of injured top scorer Calvin Zola with two clinical finishes in the 36th and 55th minutes. The sixth successive home win lifted Burton back into an automatic promotion spot and was hailed by Rowett as "monumental" in the absence of Zola and first-choice defenders Zander Diamond and Ian Sharps.
The Burton boss said: "It was a brilliant result and I'm very proud of the lads. It's been an horrendous week in terms of preparation because apart from those who didn't play, we had four others who haven't trained and could have broken down at any minute. We knew that everyone would have to play their part because we knew it would be a competitive and aggressive game.
"I think you could argue that we had a little bit of fortune with the first sending off, but I think we earned that fortune with the hard work, the energy and the commitment that we showed. There were some immense performances out there and to preserve our wonderful home record was an absolutely monumental achievement. I think we've created a side that on its day is more than a match for any of the big guns in this division."
- Sports & Recreation
- Gary Rowett
- Billy Kee