Unfortunately I was already on 2.0.32 via the beta channel earlier tonight when I observed my inserter holding spoilage and failing to insert into a biochamber in need of fuel with no internal spoilage.

Edit: And it was a direct upgrade from 2.0.28, so I never saw 2.0.30.

Agreed with the reasons mentioned above why preventing spoilage in inserter hands doesn't make sense; instead, I think it would make sense for machines that take spoilable ingredients to accept spoilage from an inserter directly into the items-spoiled-inside-the-machine slot?