I haven't read the article but E Burg has been saying for a long time that these kits are garbage and they are death traps waiting for victims. That is just in line with his mantra that if it aint stock, it aint $#&% and only factory engineering is worth a spit. Heck, even when I was involved in the online debates a decade ago about tall spindles, he was spouting this stuff off. He is a very smart guy and really knows a lot, but he also has a very narrow view on acceptability of changes at times.
FWIW, the developers of the XV Level 2 kit has also said that they reviewed the Alterkation set up for use in their cars an decided that would rather develop their own line than use Bill's product. They felt it was not a robust enough design to suit the applications they wanted to direct their products towards.
Myself, I have no beef with the AlterK or the XV. Even Magnumforce would be made acceptable with some work. I just can't afford the price of entry for the results acheived.