The old behaviour is the sane default, at least for editing text files. POSIX defines a text file as a file consisting of a number of lines, each terminated by an LF character.
Hardly any of my colleagues knows what POSIX is (and surely not in any depth, even those that do), but they still SSH and use editors that include Vim all the time...
I'd say in a company of 50+ SSHing people, around 5-6 know POSIX and its history, and usually the older ones (35+).
Especially a 2019 user, 20+ years removed from the systems, decisions, and rationales, behind POSIX.
Just try to get someone (even a seasoned Linux user) to use a POSIX-only userland (as opposed to GNU), as see how fast they'll be pulling their hair out...