Why?
The change was made (partly) based on a bullshit poll of residents, that asked basically "Hey which would you rather do, use year-round Daylight Savings Time or keep switching every six months?" - notably not including the option a lot of people wanted (and which is well-supported by a lot of research as the best option), which was "use year-round Standard Time".
And then in a bunch of press conferences and answers to the public, they would say "oh, this is what people chose" from the poll.
On the other hand, I don't like it getting dark at 3:30 in the afternoon in Vancouver around Christmas. I know it means it will be darker later in the morning but you wake up in the dark that time of year already anyways.
As for winter, an extra hour of dark doesn't feel like a huge deal. When I commuted in the winter it was often happening around 6am while still dark anyways.
I have a feeling people's morning habits will change a bit to compensate for the darker mornings though. So I think it'll work out in the end.
Where do you expect the premature deaths to come from? Rush hour traffic in the dark?
The EU won and the UK left at 2020-01-31, 23:00 GMT (local time)...
So a daily event approximating High Noon is literally gone forever here. Yes yes, depending on longitude, it was never there, but now it's even farther away. Life goes on...