pseudoscience at its finest. A CEO injecting herself with her company's experimental gene therapy, written up as a press release? This is a comic book plotline masquerading as marketing, not science.
Its definitely nice to know (pending, you know, some actual peer-reviewed analysis of this case) that telomere-lengthening treatments are possible in humans, but that's only half of a "successful therapy against human aging." What are the actual health effects? We still understand aging so poorly that no single biomarker really represents "biological age," and certainly there is no scientific consensus on what the root causes are (which may or may not include: telomere degradation, mitochondrial DNA damage, breakdown-resistant protein plaques, weaker epigenetic signalling, and the list goes on.)