Well, cons are definitely imagined

I agree with Nicolas, Allen Ngo's articles are consistenly bad written and misinforming. I pointed out this to notebookcheck.net (german-founding) but seems they have done nothing.

Complains about durability throughout the entire review but doesn't even perform a single test to verify the validity of said assumption.

If you are a potential buyer who is perhaps concerned about Gram's "flimy and flexible" chassis and its "comparatively poor rigidity" as Allen puts it, here's an actual real-life durability test from NoteGear - a well renowned Korean laptop review team.

(comments don't allow posting links so please add www. in front of the urls if necessary)
Youtube link: youtube.com/watch?v=BuhXKHUVa80
written review: goo.gl/M7QFEx

SInce you haven't performed a full chassis disassembly much less a simple one, it's uncanny how you came up with "only fixed RAM" at the bottom of that short maintenance section.
NoteGear's teardowns of the current and previous gen Grams confirm all three 13, 14, 15" models to have an onboard soldered RAM in addition to a Socketed slot. Various other reviews also confirm that the laptop's memory is user-upgradable and runs in dual channel configuration.

Youtube link: youtube.com/watch?v=X58HsV-z6RY
written review: goo.gl/W1B7bp

And finally, USB PD is definitely supported in all three models because that was part of their marketing pitch during launch. In fact, LG sells a multi purpose USB-C power adapter specifically designed for Grams called PD-Boy, which apparently supports Quick Charging.

written review: goo.gl/U9Q2jh

Source:
NoteGear reviews: notegear.com/Content/Content_List.asp?kind=2
LG Gram 15" full review: goo.gl/SXFsSQ
Gram dual NVMe SSD test: goo.gl/aYDum7