I do think people are being a bit over-judgemental about this show so far. One, its a reality TV show, not a documentary - think big brother, or castaway or something - the people getting chosen were always going to have to have an appeal that the shows producers would be looking for. It's like x-factor where you need to be trans rather than able to sing. A bit larger than life in some ways is a given. As far as passability goes - well Drew and Donna don't look different from a lot of over made up late teens early twenties girls you'd see every weekend round England. It's a look.
As for it representing rich people - again, this is set in the UK. If you get the NHS approval, then therapy, hormones and surgeries are covered without cost. You can get GCS on minimum wage or drawing unemployment, you don't need to have 20-100,000 to burn or take out loans for. In the latest episode anyway, you get to see Lewis, who was denied top surgery via this route, organise fundraising to get a start on the saving he'll need to get it privately. Seems like everyone so far is on the low end of the wage spectrum, both personally and familialy. Working poor to middle class seems to be the spread.
I did read one comment about the racial make-up that I'd like to address. Again, it's the UK not the US. I'm not saying that there aren't any non-white trans people in the UK, not saying that at all, but the ethnic make up of the country is completely different. The US is something like 13-15% african american and then add to that mixed race Black + white/hispanic/indian/asian in terms of total demographics. The total black population in the UK if you add together the African, Caribbean, and mixed-race Black communities (which are all very different) is maybe a little over 2%.
To put it another way: The producers of the show have narrowed it down to 100 trans people to pick from, and magically these 100 people are representative of racial demographics. If it's being made in the US: 64 are white, 13 black, 9 white hispanic, 5 asian and the rest are native american, mixed race or other ethnicity.
In the UK that split is: 92 are white, 2 are indian, 1 is pakistani, 1 is mixed race, 1 is african, 1 is afro-caribbean and the other 2 are 2 from chinese, non chinese asian, bangladeshi or other. The fact that all the people on the show are white isn't as odd or misrepresentative as it would be in the US.
So far it doesn't seem to be doing too bad.