He's a military commander talking to his opponent. Yes, he may have been telling the truth, but he's about as far from a reliable source as you can get.
But Janeway's not relying on him for vital tactical information, she's been told he has reinforcements, and she'd be a bad leader if she dismissed this simply because you feel "he's about as far from a reliable source as you can get"
She has to consider he's telling the truth, and plan accordingly
This is the Kazon settlement:
Two small ships, no more - if they'd had more they'd have brought them to the battle.
You mean, like the big ship they DID bring to the fight with Voyager, the one the required the Maquis ship's suicide run to disable?
Since that big ship wasn't in the settlement, and they brought it to the fight, then we have no evidence they didn't have more, and his threat of reinforcements is a credible one
And? How does this change the fact that they were holding off the smaller ships without much trouble.
But they had trouble with the big one, and were told other ships were coming, and they were fresh out of Maquis ships to sacrifice in suicidal charges
If the Kazon come at them with overwhelming force then they'll see them coming in time to change the plan, and if they don't then they'll figure out in the early stages of the action whether they can be held off or not.
So? They're staying put long enough to activate the array, not planning a war.
It counts because if they can't outrun the big ships, and wait for them to come, then their stuck in a fight they can't win, against enemies they can't outrun.
How is that a good strategy?
If they didn't use the array they'd be stuck seven decades from the nearest Starbase, and therefore as good as dead.
Yet they didn't use it, and they survived.
Staying alive long enough to actually search for a way home is better then planning a suicide stand just for the slim chance the Maj was lying, the array wasn't too damaged to work, and Voyager could fight against whatever's thrown at it
He's utterly unreliable as a source - nothing he says can be taken to be in the least bit trustworthy
Why? What has he done that was untrustworthy until now? The only lyer we've seen up to that point was Neelix, when he double-crossed the Kazon to save Kes
I pointed out that they were kicking the s**t out of the Kazon before the Pred turned up, and therefore knew that a lot more than two raiders were required to pose a threat.
If by "kicking the shit" you mean not destroying them in short order while receiving help from the Maquis Raider before the big ship arrived, then you're right.
But they still did not know how many other ships, or what type of ships, were coming as reinforcements.
You're assuming that a) there are reinforcements on the way and b) that they'd arrive within said several hours.
Well, Janeway had to because a)she got her ass kicked by the Kazon ships and could no longer sacrifice a ship to kill the opponents, b) the array had been severely damaged by the impact of the dying Kazon ship and might not be able to bring them back and c) the reinforcements could very well arrive within the hour.
The fact that they're seven decades from home. Your approach can be summarised as "trying to activate the array to send them home wasn't guaranteed to work, therefore they shouldn't even try". My approach is "if they don't use the array to get home they're as good as dead, so the risk is well worth it".
My actual approach is: "we're facing known risks, with possible enemies coming at us again while we're in a vulnerable position, while trying something that has virtually no chance of succeeding, so let's take all of these into account when devising our possible course of action".
You're of the opinion that the actual risks are worth it, you're ignoring other possible risks, and feel that staying and trying is the best way to go.
I just feel they aren't