Hmm..
It's all in the 'how' really.
'Yo, fatty, eat fewer pies or you'll die'..
Not acceptable.
'We need a chat about your weight and diet, there is a risk to your health'..
Acceptable if uncomfortable to hear.
However...
The medical profession DOES have a nasty habit of blaming EVERYTHING on weight (or alternatively, old age, and if you old AND fat... well you're screwed).
From my own personal example...
Me: Fat, morbidly obese in fact.
Dx with heart failure at 29. This Dx took 2 years to achieve with classic symptoms of congestive heart failure the whole time (wheezing, sloshing, pitting edema, enlarged heart seen on xray, almost dying in my sleep.. blah blah etc).
I was laughed at when I suggested heart failure. I was told it was ridiculous. I was told the episodes of waking up, heart racing, heart skipping, gasping for breath were panic attacks. Have some sleeping pills, go on a diet, go for a walk.
My other symptoms of back pain, lower limb issues, joint problems... all fat. Fat fat fat.
I actually have Ehlers Danlos, a mitral valve issue, an ejection fraction barely compatible with life (slightly better now due to meds)...
Two years!
My sister, normal weight aged 31.
Symptoms of wheezing, palpitations, fatigue... two false starts where the symptoms did not manifest in front of a Dr.
Third time around (two weeks after the first onset of symptoms), this time I told her to run up and down the hospital corridor immediately before examination.
This she did. Oh, you have heart failure.
THEN they looked at my history as well as hers, dx Ehlers Danlos, affecting her heart, on medication straight away.
Now yes, my overloaded frame does struggle more, but my condition is far more serious than hers and always was, hence I got fatter and she did not.
But a difference of TWO YEARS for a dx vs 2 weeks.. when the only significant and obvious difference in patients is weight...
That is indicative of a problem within the medical profession.
The misdiagnosis of panic attacks and the sleeping pills almost killed me, my OH woke up to find me non responsive and blue in bed as a result and it was lucky he basically shoved me out of bed and i started breathing. Had he not woken up for a piss that night, I would be dead (not over dramatic, the GP who dx and prescribed admitted this!).
So yes, the attitude towards fatness and obesity whilst not occuring in the OP's example, IS a massive issue.