I savescummed occasionally when the I felt the game pulled something glitchily. Like having 3 of my squad bombed by a sectopod I couldn't see or even attempt to target because it was "behind" a train (yet it was in tall-mode, shooting over that train). VIPs getting shot while still in intact transport-vans. Even particularly ridiculous-looking pod discoveries, where I advance behind another squad leader yet pull a pod (LOS is occasionally as enigmatic and frustrating as OldCOM). Like one mission, I got discovered on turn 1 because there was a hidden pod standing right behind a *car*.
I'm missing out on learning these absurd mechanics by trial and error, sure. They're often frustrating and unintuitive. If I want to see the mechanics of the game fully exploited, I'll watch Beaglerush, I'm just playing to experience a cinematic narrative with reasonable challenge.
That means losing soldiers, but not to immersion-breaking nonsense. Which is up to individual interpretation.
Not to mention that the game has crazy slippery-slope syndrome. Losing isn't fun when a single mistake can doom an hours-long campaign. A mistake like an andromedan charging up and grenading the hunkered-down VIP it never saw before.