El Reg is showing a pattern here
While this is a major step up from the last two "machine learning fail" studies The Register has breathlessly reported on -- at least this time it's not just testing some crap created from scratch by the researchers themselves -- they chose DeepSpeech, of all the speech-to-text algorithms, widely considered so bad that this might be the first study to actually bother testing it. It's no surprise that it fails so badly. Even if they have to confine themselves to open source (which makes no sense in this case, since they neither analyze the algorithms nor modify the code), CMU Sphinx and Kaldi are the gold standards.
No one cares how DeepSpeech fails, it's widely regarded as a failure. Waste of time testing that. Wait until it has another year or two to mature before it's worth testing.