Black shadows from the bottom of the screen

"You need to get your system repaired under warranty! You have a backlight driver failure or the backlight within the display is bad. Did you speak with Apple directly? I find it hard to believe they lead you astray here as this is so new a system.

If you damaged your system some how I would strongly recommend you buy the AppleCare + option. While it won't help you if you got your system wet these newer systems are harder to service as there is just fewer replaceable parts which are expensive if you have to get this service out of warranty or service contract.

Update (07/15/2019)

Good News!

Apple has now issues an extended warranty for the 13” models 13-inch MacBook Pro Display Backlight Service Program"

I also have a 13’ retina MBP with touch bar. It started with the stage light at the bottom of the display and the next day the screen would’t light up. After chatting with Apple and doing all the software check, I realised that if I opened the laptop slowly it did start, and then I connect it to an external display and the Macbook itself works perfectly. No problem whatsoever. But if I open the top further than 40 degrees, then the display goes black (but the machine keeps on working and displaying in the external screen). The technicians I talked to didn’t have a clue. I took it to an authorised agent here where I live (Uruguay, South America) and they want to replace the whole display at a cost of U$D 600. Of course I said no. I am travelling to the States shortly and will take the computer to Apple and see what happens. I hope they find a solution shortly because this is a late 2016 MBP that I bought early 2017, and not expecting it to have any problems. I have been using Mac for 10 years now and never a problem!

Wow I just had the exact same issue on my MBP Late 2016 with Touch Bar now. This must be a common hardware issue with some of their Late 2016 batches as the pattern is clearly there. I'm just 2 months out of my warranty and guess how much they quote me to fix it? $600. We already paid top dollars for this supposedly premium hardware. Shame on you Apple! They had battery problem right from the beginning with this model but I decided to stuck around to support them. They would be crazy if they think they'll get more money from me. I'm moving to Dell XPS.

I have a 2016 13” MacBook Pro TouchBar, 4 TB and same issue happened to me last week. I heard Apple products last a long time but I’m not so sure anymore after this.