Terran Treats were created by Steele Tech in recent years as a response to Victor having been so fucked up by his adventures that his DNA was breaking down under the stress of all the mutations he'd undergone. In order to get back to looking mostly human he had to do the dance you can do in CoC where with very careful application of a shitload of different items you can almost get back to human, but that just fucked him up even more internally because now he was a human-looking mishmash of various bits of alien DNA. It's glossed over, but making sure Captain Steele was healthy must have involve virtually creating his/her entire genetic code from scratch to match what Victor had on record rather than what was in his sperm by that point.
The intent was that the prototype Terran Treats helped Victor hold himself together during those final years, but was insufficient to actually cure his condition when he was that far gone. If someone like Penny or Ceria were to use Terran Treats, it would put them back in human form with no side effects, both because modern transformatives are safer than those from 200 years ago and because they've only transformed into one particular thing and not hundreds of times into hundreds of various things. Captain Steele can transform all he/she likes, because he/she's got the custom-built nanites that ensure he/she's not going to fuck him/herself up beyond repair unless he/she does something really fucking stupid like Treat or Dumbfuck him/herself.
