Why are all unidentified "hab type" pods identified as "carribean reds" these days?
They are not. If they are not light green immature (a recessive trait), small and roundish while tapering off to a point (not too common for "Habanero" types) and have heart shaped leaves (not too common for C. Chinense) then one tends to think of the one pepper that looks like that... What could it be? Oh yes, a Caribbean Red. And since most people who identify them as Caribbean Reds are also probably growing them or have grown them at some time.
Seriously, how many peppers have you seen that look like a Caribbean Red? Not too many I'd bet.
If he had showed a picture of some unknown dark green pod and or wrinkles and or elongated, I don't think anyone would have said Caribbean Red. Why? Because it doesn't look like it.
Here is a better question I think... Why do most people who grow "Red Savina" have something that looks exactly like a Caribbean Red? Which IMO is a pretty unique looking pepper.
I have a feeling I know the answer, they are Red Habaneros (that helps) they are quite hot (that also helps some) and real Red Savina seeds are very hard to come by (seeing as you legally need a license to grow them commercially) but regardless people have been selling or trading seeds claiming to be "Red Savina's" even RedSavina.com which admits they are not real Red Savina seeds. It's only natural that people will be growing both of these varieties thinking they are different when they unknowingly have the same variety, a Caribbean Red or some other Red Habanero type.
Add to that the fact that most people don't really know the physical differences between the two plants and you get lots of confusion. I have seen people's Webshots and Flicker albums proudly displaying what they claimed to be "Red Savinas" and even "Bhut Jolokias", and they were all smallish, round, tapered and light green immature pods that ripened to dark red and had heart shaped leaves. Of course you probably have seen people growing the cayenne type pods that were supposed to be Bhut Jolokias, another example of one plant being sold or traded as another.
I think it's pretty clear, there are lots of people growing "Caribbean Reds" and they don't even know it. Add to it that they are a very popular variety in the first place and produce a ton of peppers with a unique flavor with almost twice the heat of a typical habanero and you can see why so many people are growing them.