The fact that the world is overdue for a major pandemic is nothing new. It's simply that the GPMB is doing its best to remind governments of that fact.
The worry is that people will only see the report as 'scaremongering', when the risks are very real indeed. The GPMB isn't a 'conspiracy organisation', which can be easily discredited. Instead it's a highly-reputable body, jointly set up by the World Health Organisation and the World Bank, with a membership that includes Krishnaswamy VijayRaghavan, Yasuhiro Suzuki and Jeremy Farrar (all of whom are internationally acclaimed scientists), with Gro Harlem Brundtland (who's a doctor with an excellent track record in politics) and Elhadj As Sy (representing the Red Cross and the Red Crescent, who would be in the forefront of a battle against any pandemic) co-chairing the organisation.
Their report need to be taken seriously!