My reading from the story was the iFixit guys hadn't found a screwdriver they were happy with yet.
"iFixit is doing what it can to source screwdrivers to work with the new screws, though it notes that there doesn't appear to be a single reputable supplier that carries the same tools Apple technicians use."
"Wiens notes that the pentalobe driver isn't perfect—"the tip is more star-shaped than "flowery"—but it can remove Apple's pesky replacements and "liberate" your iPhone."
BTW, this article is a submarine (see Paul Graham's submarine PR essay) for iFixit, at least partially.