Why does none tall about nidus’s farm

Everyone talks about “oh citrine is an awful grind” “oh equinox has so many parts shes a terrible farm” instead of talking about the fucking DEVIL OF A FARM BASEE NIDUS IS. Ive been farming for this guys for like 20h and i still don’t have his god damn systems, i’ve gotten his systems and his chassis sooooo many god damn times its not even funny anymore more, half my orbiter is covered in serum injector fragments, i have to sift through them to start a mission, its awful, can the PLEASE make his drop chance every 3 rounds instead of 5? Or give me a pity system? Im begging here PLEASEEEEE.