Hey Siri doesn't work with screen face down!

What a bummer!

Hey Siri doesn't work anymore when the iPhone's screen is face down...

I used Siri to ask what time it is during the night or on the morning, before turning on the lights. It was perfect because the room would stay in the dark.

But now, if i have to let my phone with the screen face up, I'll be awakened by my the light with notifications (out of my "do not disturb" hours, like on Sunday mornings) and every time I ask Siri something.

Such a disappointment... I don't get it. Why removing such a smart option?