This article is well-written, but in the words of Margaret Thatcher: No. No. No.
I'm 100 percent anti-spoiler. At best it is thoughtless, at worst it is staggeringly selfish and inconsiderate.
I do think it is possible to talk about and recommend a film in an engaging way without spoiling it, and when describing the plot, there are common sense principles that apply. Saying The Empire Strikes Back begins with the Empire searching for the rebels on the snow planet Hoth is not a spoiler. Ruining the big twist in Luke's duel with Darth Vader clearly is.
Any discussion of major spoilers should always be ring-fenced with a prior warning, and I'm glad culture has evolved in this direction, in view of the thoughtless review of Star Wars that you cited. I can assure you I for one would have been deeply irritated by such careless commentary in 1977.
I've written on this subject at length. Here's why I wish people would be considerate:
https://medium.com/cinemania/stop-spoiling-classic-films-for-the-next-generation-9bef0b3bca20
Also, I am sick and tired of trigger warnings, as they contain spoilers too. There should be an opt-out for those (like me) who actively enjoy the catharsis of shocking, traumatic dramatic material, and don't want to be warned about it beforehand in mollycoddling terms that spoil the surprise.
In short, spoilers are the Devil. I'm pretty sure "Thou shalt not spoil" is in the Bible somewhere.