Yeah, I don't really see TMP as much of a adaptation of TOS. The original series at its core was about how the people on the Enterprise and by extension future humanity as a whole reacted to the new life and new civilizations they sought. The Motion Picture has too much focus on V'Ger itself and not the crew, exemplified by the fact that much of the movie is special effects of the former and the crew looking slaw-jacked at it.

Really if you want a movie that felt like the show in terms of tone and characters, watch Search for Spock. Wrath of Khan is an operatic deconstruction of TOS, Voyage Home is a pure comedy, and Undiscovered Country is hammered home political allegory to a degree past even something like "Let that Be Your Last Battlefield." Final Frontier feels like the old show at times, but its slightly handicapped by the fact the movie is complete shit.

Abrams' film is basically Star Trek via Star Wars and perhaps fitting with JJ's knowledge/interest of the franchise feels like how a TOS remake would go if there had been no more films or TV shows after 1969.

In regard to the topic, Berman and Braga of course would go on to do serious damage to the franchise like Gene almost did via laziness and taking the audience for granted. Whether that sort of creative neglect is worse than Roddenberry's ideological shift (as his tastes just ended up differing completely from the audience's) is a matter of opinion.