I have a camping Buddy that says you aren't really camping unless you brush your teeth outsideWhat is a "pop-up"? Specifically, what features define a pop-up?
Is it the ability to raise a roof from a travel position to a habitable position? Then 'hybrids' are not pop-up because nothing actually moves 'up'.
Is it the fabric folding sides? This would include the 'hybrids' but would exclude the Apache type of hard walled folding campers. This would also exclude the A frames unless they had fabric dormers.
It is apparent that each of us has a different shade of grey, or litmus test threshold, before some pop-up isn't a pop-up in our book.
It is unimportant where along an opinion bell curve your personal cross-over from 'is' to 'isn't' is located. If you say it's a pop-up, it is to you. If you say it isn't, then it's not... to you.
Who am I to judge if our Casita might want, at some time, to self-identify as a pop-up?