What is it that you think you read in this article? What you have said is not supported in any way by the link you have provided.
This means you can’t draw conclusions from this finding apart from that any difference there actually is is really small.
If anything, this argues that we weren't strict enough on masks. Require not just wearing one, but a good one.
The reduction in infection rates wasn't large enough to qualify as statistically significant. That just means that the reduction that they saw from cloth masks could have been due to chance.
Edit: Since the size of the cloth mask group is half the size of the surgical masl group, the effect in the cloth mask group would have to be comperatively larger than the effect on the surgical masl group to qualify as significant.
Somewhow you take that as evidence cloth masks don't work?
https://med.stanford.edu/news/all-news/2021/09/surgical-mask...