For me the problem is this: in this film the plot holes, inconsistencies and coincidences are both too large and too numerous to be dealt with simply by suspension of disbelief. I can't NOT think enough to not notice them. Maybe if I only saw the film drunk?
"Plot holes, inconsistencies and coincidences..."?
TMP: People hated that the Klingons suddenly had bumps, and the plot recycled "The Changeling". They complained that Kirk would never leave the ship, and Spock would never reject his human half. Luckily for the Earth, Decker's long lost love was on the ship, and the one V'ger chose to turn into its probe, making Decker's sacrifice a wonderful, convenient coincidence.
ST II: People were screaming that Khan could not have known Chekov, and that Khan wore a metal belt buckle that wasn't ever part of Marla's uniform. And - before the movie came out - that Saavik was a Mary-Sue interloper and David was a mere Jim wannabee.
ST III: Saavik changes her face, but "it's still regulation, Admiral". Kirk destroyed the Enterprise? It was said to be only 20 years old? Spock is left on the planet by the Klingons until he reaches the same age as when he died so Nimoy could play him more easily next movie.
ST IV: Scotty gives a man the formula for transparent aluminum before it was ever invented. Coincidentally a pair of whales are just waiting for beam-up, complete with a marine biologist to look after them.
ST V: Starfleet's best navigator and pilot get lost in a park. Uhura and Scotty are flirting. Spock has a half-brother no one wishes to remember. The centre of the galaxy is not all that far from Earth.
ST VI: Klingons suddenly have pink blood. Thanks to a reorganisation of scenes, Enterprise has specialist equipment for cataloguing gaseous anomolies, but it was Sulu's mission that was assigned to do that.
And so on. Plot holes, inconsistencies and coincidences are no stranger to Star Trek.