I think most of us have questioned the label of hypo all along, we're just going along with what has been put forward.
"Hypo" is usually referring to hypomelanistic unless stated otherwise.

Hypomelanism can manifest itself in different ways than we'd expect. Look at Honduran Milksnakes, some of the hypos look pretty much normal with the black as dark as ever and all the bands and pattern there, it's the reds that seem brighter because of the lessened black affecting the red portions and the normal tipping. Here's an example of a hypo Honduran Milk


Then you have the Extreme end in them where the black is actually greyed out like here:

Both pictures are hypomelanistic

So in theory it could be possible to manifest itself in a similar way with these guys and still have pretty much the same blacks in the pattern but the black tones within the olive portions being reduced making them look brighter & cleaner green.
I still don't believe that's likely the case, but just putting it out there to the point that we can't absolutely say no these aren't hypomelanistic just because they still have black patterns.

I do think that we're looking at something more along the lines of pastel as Shannon suggested. My confusion in the above post is in regards to which snakes Jeff means, is it the crazy light ones Shannon posted or is it the light green ones some of us have?
I do think the ones in the first post should be referenced as being different