I do believe that spoilage mechanic is pretty awesome. It's a unique challenge in the whole game. But I must admit that I really hate that agricultural science pack rots also.
Imo best way to avoid eggs hatching is usage of heating towers xd.
But I agree that it should be possible to disable ...
Agricultural tower (on right soil) + some Biochambers producing Mash and Jelly with Productivity Modules will bring you a lot of seeds over time, in fact so many that you'll have to burn them in Heating Towers
I'm currently messing up with personal mod and I've tried this: recipe for biochamber ...