Health, Cochrane is a long time established source for meta-reviews. If you suspect them of foul-play, please look at their study and tell us what lead them to a different conclusion than you other meta-study, and then we can ponder who is more reasonable.
I looked briefly at the other site that impressed me with richness of references, but I think was a little cavalier with how they process them. They appear to be including a lot of very small studies and averaging them equally with large and very careful ones. Again, if you compare the two meta-studies step by step, we’ll see how they came to different conclusions.