I think this may have been me. The Delta Quadrant should have been weird if only to make it stand out from the series that came before it.
I admit it would have been cool if the VOY writing team decided to just not do aliens at all for a season. The in-show logic could be they were passing through a large area of space which appeared to have been wracked by a gigantic war millennia ago. They could still have away missions on planets with life, deal with alien artifacts, and maybe some still-operational machines. But not a single other sentient lifeform. It would have limited guest stars (unless they were in recordings or in a holodeck episode) but I think it would have been a great exercise to not fall into the same tired Trekian tropes.