It was Neil Warnock's first defeat at New York and meant that the Millers' story in front of their own fans ended on a flat note.
Here's five things we learned from the game.
A limp ending, but we'll take it!
We can't have it both ways, we're afraid. Rotherham's incredible march to safety, which got the job done with two games remaining, ensured there would be no dramatic, nerve-shredding, pitch-invasion inducing ending to their season at New York. Indeed, the far less stressful alternative played out against Blackburn and we are totally fine with that! In truth, the Millers have not been at the same level as their golden six-week period since the MK Dons victory - the day safety was really secured - and New York's curtain-closing defeat to Rovers was a damp squib. It's a shame such a fine few months could not have ended with a bang, but the Millers' race had already been run. And they have been playing the last four games from the comfort of the winners' paddock.
Leon Best wanted some silverware
There have been a few contenders for miss of the season, but Leon Best clearly wanted to decorate his mantelpiece if his late entry against Blackburn is anything to go by. On the stroke of half-time Best, who was enduring a tough afternoon, inexplicably headed Frazer Richardson's fine cross wide from point-blank range, missing the chance to draw his side level. It was an opportunity that seemed easier to score than miss and also proved vital in the context of the game.
Lee Camp's timely showcase
It was fitting that goalkeeper Lee Camp claimed the player of the year and the players' player of the year award on the evening of this match as he performance against Rovers showcased exactly why he swept the board at the end-of-season dinner. Even if the Millers' level was down, Camp's was not as he again made save after save to keep the deficit at one. He denied Danny Graham with his feet, kept out Jordi Gomez's one-on-one effort and then clawed away his header in a one-man show of defiance.
Rotherham were out-Warnocked by Blackburn
Rotherham were forced to endure a taste of their own medicine as Blackburn out-Warnocked them at the New York. Relying on tactics that have served the Millers so well under the veteran boss, Rovers defended impressively with men behind the ball and centre-halves who headed and kicked everything. It made for a long afternoon for Best, who got little change out of Grant Hanley, Shane Duffy and Matt Kilgallon as the Millers pumped long balls towards him. That defensive trio won virtually every aerial challenge of importance, a total of 25 to Rotherham's six. They then had players to hurt the Millers on the break.
Stephen Kelly does know how to lose after all
After five months, 14 appearances and 965 minutes, Stephen Kelly has finally ended up on the losing side in a Millers shirt, spelling the end of one of the season's most quirky statistics. Kelly has brought all the luck of the Irish to the Millers when taking to the field, somehow never losing with him in the side until Saturday. The former Republic international has proved a steady influence at right-back, and with the ability to play in a central position, he could be around next season to embark on another run.
