Thanks for taking the time to explain. That article and the quotes were actually from a couple of weeks ago, before the full results of the study were released just yesterday (initially the drug company just released a summary statement), so he wouldn’t have been able to say ‘the study/data shows’ but I do take your point more broadly.

There are so many respected, expert scientists in this field (representing numerous organisations and institutions all over the world, not affiliated with the drug company) stating this is an exciting step forward and I believe them. More fool me perhaps. They aren’t saying it’s a magic pill, they’re saying it’s the start, while also rightly highlighting the numerous real issues now to be tackled through further investigation, additional studies, etc. That’s how science works, as you say. What happens next will be the proof in the pudding.