Even with para's simplicity there's a lot of players, specially many new ones, of which there are often a lot of, that struggle with even our basic system.
Many cry about cloning, I played my fair share of medbay, sometimes (see: Midrounds and similar high-amounts of murder) make cloning necessary for an overworked meday. Removing it without anything to replace it would just be a strain on meday and keep a lot of players out of the round permanently past defib timer, since SR'ing everyone isn't all that fun. (Most vox don't get revived if they're past defib, in my experience, because SR-damage surgery is a lot unlike just defib)
I'm not all too used to TG but its far more complex than I think would work here, if a chemmaster is difficult to learn I don't think having people learn about concentrations and tons of chem machines/medical hijinks would do much except make medbay a missery for med docs and crew alike
That's not to say you can't strive for it though, I'm just saying that its a really big thing to ask and it'd need a lot of rework, attention and detail, or it'd just be an absolute mess. Namely because on an extended or normal tot round medbay won't have many issues, but when a clingtot messy round starts to get out of control they're going to get overwhelmed.
While I do love roleplay we're also an MRP server with a lot of newbies - Many of them will not know how to roleplay, and struggle. Not everyone will put up with it if its a thing that is forced for doctors to do with patients, instead of just letting them engage in roleplay if they wish, and doctors can snap back at people for it. Same with making it more difficult, it'll make newbie doctors get snapped at by crewmemebers ICly and OOCly for taking a while or being bad at treating them fast - As we have a lot of action in rounds so people don't want to spend 10 minutes in medbay.