She is in fact the only woman on the board and she does in fact make less than all the other board members who are men. The headline suggests that Snap isn't doing well on the leadership diversity front, and they back that up with facts.

As for your argument that different studies adjust for different variables, that's irrelevant. My argument wasn't that individual women or women in specific jobs earn less than men do, it was that women in aggregate (meaning: all adult women) earn less in total. By adjusting for different variables you can only conclude that the wage gap is justified (e.g. because women on average have less demanding jobs, work fewer hours, whatever) not that the wage gap doesn't exist. So the level of experience or the duties of the woman on the Snap board is totally irrelevant here, because even if there are reasons for why she earns less that doesn't change the fact that she does earn less and that therefore Snap contributes to the wage gap.