If you don't like that, you must not like all the TOS episodes that did that.
I don't like it when it happens
for no reason, or in a logically contradictory way. I don't like it in "The Return of the Archons," which is nearly as bad as
Logan's Run because the computer immediately blows up as soon as Kirk tells it that it's hurting the Body. Landru has been monitoring everyone on the planet for 6000 years, and there's been a resistance for some time already -- this can't be the first time it's heard someone say that Landru hurts the Body.
In
Logan, there isn't even that much of an excuse. The computer blows up just because Logan disagrees with it? There's no in-story justification for it. And it was already a timeworn cliche by 1976, not just from
Star Trek as
Greg said, but from multiple other shows and films -- practically every '60s show involving a computer had the heroes talk it into blowing its fuses, from
The Prisoner to
The Monkees. (To be fair, computers back then used vacuum tubes that were prone to overheat and blow out when worked too hard, so it's understandable where the trope came from.) But at least the protagonists there were usually
trying to outwit or out-argue the computers. Logan wasn't even actively defying, just truthfully reporting what he saw, and the computer worked itself into a frenzy because the movie was almost over. The hero did nothing to achieve the outcome; the script just conveniently removed the obstacles for him and handed him a victory so it could pretend he earned it.
And the fact that the entire city blows up because the computer can't cope with some contradictory data just makes it sillier.
Yes, that too. Not only arbitrariness, but gratuitous excess, making it even more ludicrous.
Don't get me wrong. I'm irrationally fond of the movie too, and still watch it about once a year for nostalgia's sake (and, okay, Jenny Agutter), but that ending hasn't aged well at all. Honestly, the best part of the movie is probably the first hour or so. It goes downhill a bit once they get past Box.
It has some interesting aspects (and, ohh yes, Jenny Agutter), but so do a lot of other dystopian '70s SF movies. I don't think it really stands out from the pack that much. And it is damaged by its flaws (the laughably cheesy miniatures, the nonsensical ending).