The 2009 Singapore League Cup winners recorded a narrow 3-2 win over Tanjong Pagar at their Hassanal Bolkiah Stadium on Friday night to regain pole position after Balestier Khalsa had momentarily knocked them off top spot 24 hours earlier.
Despite nearly throwing it all away after being 3-0 up, DPMM - who suffered the ignominy of being forced to quit the 2009 S.League title race thanks to a FIFA ban - hung on to remain the only side yet to be beaten in this season's S.League competition.
The victory against Tanjong was also DPMM's fourth at home this season. Indeed, only reigning champions Tampines Rovers have escaped from Brunei with a point thanks to a 2-2 draw in the opening round of fixtures.
Having seen his side beaten only once in their own backyard in 2009 - a 6-1 loss to Home United when they were reduced to eight men - Simunic was quick to acknowledge the roles home advantage and fanatical support have played in DPMM's spectacular S.League return.
"This grass, it is special," a smiling Simunic told the Brunei Times newspaper.
"We have never lost in the S-League playing at home as I don't consider that 6-1 loss to Home United in 2009 as a defeat.
"The fans have brought us on top and they have kept us on top. We are doing this together," he added.
Before edging past Tanjong, who remain next to bottom after the defeat, Simunic had claimed that DPMM's run of success was one which every Bruneian should be proud of.
"Our unbeaten run is something that every Bruneian must be happy about," he had said.
"Our long unbeaten run is being challenged by every team, and they are eager to play in our stadium, which is the best in the S-League," the Croat added.
DPMM can cement their place at the top of the S.League next Thursday when they face Home United at the Jalan Besar Stadium.