It makes perfect sense to try to slightly reduce emissions of one of the most potent green house gases, while still subsidizing this industry with taxpayer money. Because we will need to spend even more money on treating cancer and CVD, while deforestation and water/land pollution will greatly benefit the environment.
Actually, the article seems to be about research with very little actionable happening. People are looking into it, and have speculative ways of decreasing the bacteria that may or may not make a difference.
Meanwhile, we could simply stop subsidizing beef now.
We keep fiddling, playing round the edges while Rome burns. And Paris burns. And New Delhi burns. And Los Angeles burns. And Beijing burns, and ...