I think the reason for all this you are talking about are the high change costs: the more you are used to an environment the higher the costs are to change completely to another environment, meaning of course the money for buying licenses and of course the very much time to get on the same level as you already were in your previous familiar environment.

So, pointing out one feature and saying this can be done as well in my environment is pretty simple because you know how to do it and it is almost no challenge to you. But imagining to change to the new environment just for this one feature creates for most people some sort of fear and discomfort. So, they rather take the easy path and recreate it in their comfort zone and are even more happy because "they can do it like the big guys".