I can definitely see it as uncharitable (subjective) but if one wants to claim it's wrong (objective) it would be best to provide reasons. I'd suggest ones which are more thought-provoking than "it's not literally a pyramid scheme" as that can be plainly seen.

I read the "pyramid scheme" (given the rest of the comment) as an accusation that it exists primarily to monetize the biometrics that individuals provide of themselves and any effects like "people can authenticate themselves online with our service" are secondary.

I think the best counterargument would be that biometrics aren't that valuable, and that poor peoples' biometrics are worthless.

This doesn't rule out Worldcoin being wrong, though. (See the whole "data is the new oil" phase).