

They even had an ending in the movie that was closer to the original , but they cut it/changed it because it didn’t test well.
I’d guess that was because it was an ending that followed the original storyline and didn’t make sense without the rest of the movie also following the original storyline.
spoiler
It turns out (or is apparent in general) that the “zombies” are sentient/sapient and to them he’s the monster in the dark(or daylight as is the case here), from their point of view he’s basically been abducting people for experimentation and killing anyone who comes looking for their abducted family.
The zombie/vampire guy at the end is just looking for his partner to rescue her, once he has her, he leaves.
Not who replied to you originally but,
You aren’t wrong (you even stated that more is probably better) , just not necessarily presenting the whole picture.
Ram compression isn’t a benefit only scenario, there is a cost in processing power to make that happen.
So it’s a trade off of memory utilisation vs processing requirements.
Whether or not it’s worth it is down to circumstance, though i agree that generally i think it’s worth the tradeoff.
Unified memory is useful in specific circumstances, most notably LLM/ML scenarios where high vram utilisation is part of the process.
It’s not an apples to apples comparison by any means.