The distance makes it seem like they're about a day's travel away, far enough that they have a pretty good distance from the tower. That being said, I don't actually know how far the watchtower is from the village, how far they are at that position from the village, or how the Orcs wouldn't have been able to scout that. Shenanigans are certainly afoot.
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I think this would be a more awkward explanation to have time be comparable between all 3 plotlines. I get what they're trying to imply with cuts and stuff, but there's also been other time inconsistencies that I've brought up before, like Ep 3 when Halbrand and Galadriel are already in Numenor and supposed to be there within 2-3 days, while Sauron Simp talks about the Meteor falling weeks ago. It's odd time passage between the two plotlines, and between scenes in general.
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I get what you're trying to say, but my comparison again is to Xena's combat or Pro Wrestling. Plenty of stuff is tied to the real world, but it's all scripted out for the purpose of entertainment and cartoon-level dramatic effect more than an authentic realistic world. This is not Tolkien in whatever sense you actually want to consider it to be, it's an over-exaggerated version where the action is overdramatized for the sake of entertainment.
It doesn't matter what armor they're wearing or what weapons they're using if the characters are being protected by Plot Armor. Even main characters being skewered by arrows will end up walking it off by the end of the episode.