They said they feel hard done by the government for its failure to hold those involved accountable.
Wong Wai Fong, 36, said the report raises more questions about the incident.
He said the report was ambiguous on who should be held accountable, and questioned whether the landowner who ran the campsites was aware of the land’s intended use for agriculture.
The forensics report had said that there was no solid proof the landslide was partially caused by “anthropogenic activities”, or human activities, leading to environmental changes.
According to the report, the landslide that took place in the early hours of Dec 16 last year, saw two major slope failures, which created a collapse zone with an average depth of 14m and length of 120m.
Thirty-one people, including 13 children, were killed in the incident, and 61 others injured.
It also revealed that the landowner was authorised to develop a resort and botanic garden on the land where the incident occurred.
“The report states that the botanic garden and resort were approved for planning, but we didn’t see any approval of the environmental impact assessment in the report,” Wong told FMT.
Naming Malaysian Botanical Garden Resort Sdn Bhd as the registered owner of the 81.71ha plot of land, the report said planning permission for the proposed development was granted by the Hulu Selangor district council in December 2019.
“The government should clear doubts by explaining why only the campsite was affected by the heavy rain, while the surrounding areas were not,” Wong said.
A survivor, Leong Kim Meng, 58, said the report failed to deliver justice to the victims.
Describing the report as unconvincing, he urged the government to act on behalf of the victims, take stern action against those responsible, and ensure that such an incident does not happen again.
Michael Teh, 48, urged the government to conduct a new study on the incident, calling the report “illogical”.
“The government should bear in mind that this is under global scrutiny, not just in Malaysia,” he told FMT.