There are some flaws in this article. First of all, it's Hot Rod magainze which already has its share of Luddites among the readership. Getting fuel injection advice from a carburetor magazine is already dicey. But first I will agree and say yes, it is true that there are some low quality Chinese stainless braided line and fittings.
But the main problem is that it was poorly researched. It sets up a "hierarchy" of fuel lines. The crappiest are really old fuel lines from a long-gone era of carburetors. Well that's obvious. Then it says SAE J30R9 spec (normal fuel hose) are improved over old rubber (of course), and J30R12-spec is even better. Except if the author had actually read the SAE standard
he would see that there aren't even any specific ethanol degradation specs for J30R12 hose listed in the specification paper. It makes me think that he is just parroting what some sales rep told him. If you want to see the full J30 version 2 specs, send me a PM.
All the normal auto part store hose you get that usually says "J30" on it has been engineered to withstand E15 under reasonable use.
During testing the hose is completely immersed in E15 fuel for 70 hours and then must meet a minimum standard for deformation.
When you read the acceptable tolerances, on paper it may look like a lax standard. But there are many 20+ year old properly maintained cars with original fuel lines today. If you let fuel sit in the lines for years then yes there will be problems. And if you use E85 with Autozone fuel line then yes you may eventually have a problem over the long run.
In the magazine article it shows a couple lopsided-looking comparison tests (carefully scaled bar charts) that show the teflon hose is better. Well I don't doubt that expensive teflon braided line is better than hardware store fuel line for withstanding ethanol-formulated fuel. But it's like comparing, in a drag race, a stock FD to a stock Civic or a stock C6 Z06 to a stock Civic. If you're trying to beat a Civic a Z06 will perform better than an FD but that doesn't mean the FD won't easily get the job done.
Is the teflon hose better? Yes. Do you actually need it? Probably not. In fact, I still have a few sections of original 23-year-old fuel hose on my 2nd gen, and that's probably seen E10 for at least a decade.