In FE Wiki under temperature variations it describes how the intensity of sunlight is greater at the equator than it is at the poles. I quite agree with this and would point out that the same principle applies to RET.
I am assuming that the purpose of FE Wiki is primarily to gather and reference evidence to support FET, how does this particular inclusion help the case for FET?
I'll go read the the write up in their wiki but at first glance my thoughts would be they ARE describing round earth. Because that's exactly what happens from equator to poles directly due to curvature.
But I see what you're saying, if their presentations are supposed to be unique to FE or bring evidence of a flat earth to the table or that support TFET this isn't making their case.
However I think you'll find that they often link observable real world events to their FE hypothesis in a vague manner that leads the reader in a direction to make assumptions based on little information.
(and they admit they need more and add more info to their wiki as it becomes available)
As in your case here, if they didn't specifically say this is unique to FE and couldn't happen on RE, it only leaves you to make assumptions. I guess it's one way to avoid chimerical stories with so much information one can easily pick them apart. But I'm making assumption her because like I said I haven't read those parts in their wiki yet.