I don't think MyOther is saying it shouldn't be covered or it isn't realistic, just that much like the ^number of surprise pregnancies^ on one little square of houses in London, the number of people coming out as gay in a few departments in one hospital seems very high, especially when a lot of them have been heterosexual until they worked there.
However, ultimately it is similar to how many ^wayward teens move into a small street in Australia to get straightenend out in 2 months - it's about impactful storylines, not adhereing to what happens in normal real life.
Lets face it, a show that reflected the real lives of a bunch iof randonm doctors and nurses, or residents on one estate, or teens in a quiet bit of Australia would be pretty boring.
So its both disproportionately high, like the murder rate also in Eastenders, and also a keep storylines going