The entire article reads as someone specifically searching for something to criticize, and some of these are a real stretch. The sloppy cladding and bricks is surely not ideal, but is it really a big deal at all? It's hardly noticeable unless you are specifically looking for things to nitpick. The "damaged wheel" picture in particular is literally just paint chipping on a piece of machinery that hardly anyone will actually see. Who cares?
As for the design criticisms, it's clear this person doesn't know much about actual design principles, despite criticizing the designers for it.
1) The escalators are almost certainly purposefully designed like this. This is common in many places, and I especially have seen this design used in many malls. Along with the fact that it guides people to product display areas, it also prevents dangerous traffic jams on the landings between escalators (it takes longer to get on an escalator than it does to get off, so in high traffic situations, you can end up with a lot of bunching at the top of an escalator, which can mean dangerous situations like this [1]).
2) Stairs are a common bottleneck since it takes longer to go up/down stairs than it does to walk on a level walkway. To prevent bottlenecking, the stairs should be wider than the walkways they connect to. This is the same principle you see when tollbooth plazas have more lanes than the highways they connect to.
3) The complaint about the gap in the railings again seems like an incredible nitpick. The author claims it is a 6 inch gap, but based on the photo, unless this person has massive hands, it looks more like a 3-4 inch gap, and I think it's a real stretch to call that "dangerous".
1: https://www.youtube.com/watch?v=IVqg6sjJK-M