Wednesday's match was a group-stage tie in the AFC Cup, the Asian Football Confederation's second-tier club tournament.
Zhang Jilong, acting president of the Asian Football Confederation, had asked the International Football Association Board to review the ban.
But due to funding from the Asian Football Confederation (AFC), which has recently insisted on the AIFF employing professionals, Adams thinks the situation is improving.
The acting head of the Asian Football Confederation, Zhang Jilong, told a meeting in Malaysia about match-fixing that it had become "a pandemic" which no organisation could fight alone.
The 62-year-old Qatari appealed to the Court of Arbitration in Sport (CAS) in Lausanne to block the appointment of China's Zhang Jilong as his acting deputy as Asian Football Confederation (AFC) president.
The three officials all accredited with FIFA, soccer's global administrator were in Singapore to referee the April 3 match, which was part of early round robin play in the Asian Football Confederation's second-tier club tournament, the AFC Cup.
WSJ: Singaporeans Allege International Dimension in Match-Fixing Scandal
The three men were in Singapore to referee a match organized by the Asian Football Confederation when they were brought in for questioning, and "are currently assisting" investigations, the Corrupt Practices Investigation Bureau said in a statement on Wednesday.
Scudamore's plans received a mixed reaction around the world, with the heads of the Asian Football Confederation and Football Federation Australia, which could host any proposed games, rejecting the idea, while Uefa chief Michel Platini called it a "nonsense".
Representing the Asia-Pacific region of FIFA, the world soccer association, under the auspices of the Asian Football Confederation (with 46 member nations) at the 2010 South Africa World Cup venue are four teams: Australia, South Korea, North Korea and Japan.
The former colleagues fell out in 2011 when Blazer reported Warner and Asian Football Confederation chief Mohamed bin Hammam to FIFA's Ethics Committee, accusing the duo of trying to bribe Caribbean delegated to support the Qatari bin Hammam in that year's FIFA presidential election.
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