It's a very low level manslaughter. It's a case which it is not surprising was fought (can't really blame her or her lawyers for thinking so). There must have been a triable issue which was worth contesting.If lost, the trial might still have confirmed the mitigation of her working under pressure. The sentence seems right.
And yes, people do 'walk free' having been convicted of manslaughter. This doctor's case is just one such Anyway,.does her professional body thinks that , by virtue of this one error, she's not fit to practise, or presents some continuing danger to the public?.If she's a fit doctor, there's another reason for not depriving us of her services, just for this one slip which, we trust a) she's learned from and b)won't repeat and nor will she make another of consequence.
Most manslaughters (other than manslaughter by way of murder being reduced to manslaughter because of diminished responsibility) are instances of assault where the accused did not intend really grievous bodily harm (if they did it would be murder)It's not usual, though not unheard of, for people to avoid jail even in those.It depends on the facts.