I agree with that to a certain extent but it will definitely depends on the people to just like back in the days everyone wanted a green iguana.
For the right people, that have the right expectation, have made the right research they are a great first time pet and a good looking one at that considering the choice people now have compare to 20 or 30 years ago.
The size make them apealling bigger body but not big and impossible to manage alone, their nature makes them appealing as well.
When I started keeping snakes here in the US (no just rehabing animals temporarily anymore), I really wanted a cornsnake not a BP but being illegal in my state, BP were my second choice as something I could find easily and already had knowledge of.
Now do I found them boring? Yes but it’s like looking at a colorful painting for me a piece of living art which many would find boring to do so as well.
It’s all about expectations and many have to high of expectations for that specific species.