Personally,i happy to struggle to remove it, it's not that difficult
What i wouldnt like however is to be in dire need of fluid only to find the bottle has fallen out and is somewhere miles behind you
Joking aside,that can be dangerous,especially if youre on a long trail or road and it would be difficult to locate another source.
An emergency filter straw is a real bit of kit that takes up as much room as a pencil and weighs about the same. I know you might think it mad to have such a thing living in your bike gear but it is a very handy tool if youre stuck
And how many of us normally carry things its unlikely well use unless its an emergency :?