Probably because all the news about the device has been negative since it was announced.
First it was the notch and the pricepoint.
Next it was the sales numbers estimates.
Most recently, it was the sales forecasts from suppliers.
They want it to be a flop, so Apple will never attempt to make such an expensive iPhone again.
Well I guess they'll all just continue to be wrong then. I just don't get pushing the same old narrative over and over when it's been proven to be a success.