I somewhat agree with this. Having said that, remember that some people refer to their animals as 'collections' (like figurines or something),
and seem to forget they're dealing with a live animal that whilst probably secretive and spends a large portion of its time coiled up, probably does appreciate being
able to move around a bit.
Really though, it comes down to the individual keeper's mentality. Personally, I only get snakes that I know I can provide with a proper, well-sized tank when they're fully grown. Having kept my 3 snakes as hatchlings in tubs, I really do prefer having display animals.. Which would probably explain why I only have 3 snakes.
My main concern (I haven't actually witnessed this, but it's a concern nonetheless) is that because reptiles (snakes especially) are such low maintenance in comparison to mammals for example, that as a result, it's more likely people will become forgetful and begin to neglect their animals.