It isn't just the notch that is a marketing tactic. The claim of a 5.8" screen is pure marketing.
This screen is not 5.8" in the real world. This is especially bad if Apple insists on centering content or if content won't work with screen curves. Not only does a 5.8" diagonal require leaving the screen and landing on the bezel, it also runs through a notch ear, space that is unusable for a lot of content.
I have been trying to find the size of the "safe space" where many apps will live, but could not find it. Based on the phone panel being more narrow than the 8 Plus and based on the unusable notch area and the matching unusable space on the bottom in landscape, the X screen will effectively be smaller than the Plus.
It amazes me how poor reporting is on this. Reporters talk as if the display on the X is superior to the Plus, including in size. Such a shallow analysis. Hopefully an X Plus will be included in the next cycle as this phone is really meant for those who were unwilling to accept the width of the Plus.
To be fair to Apple, the screen does act like 5.8 when just using the OS since the icons would be at the top with or without a notch. But I doubt anyone gets a large phone to have for space for navigating the OS. People want the large screen for interacting with content, which is exactly when the X screen starts shrinking. I will also concede that there are many users who always deal with their phone in portrait using the kinds of content that would not lose screen real estate to the notch and the home slider. The X design seems quite nice for them.