My doubt in endangered frog populations comes from the lack of evidence in the article and anecdotal personal experience.
I’ve traveled to many countries in Asia in recent years, not once having seen the frog dishes crossed off the menu while other dishes frequently are has the ingredients for that dish become scarce.
I was in Cambodia recently and literally had to stop walking for a while because the path I was walking on had thousands of little baby frogs migrating somewhere.
I would need to see you some hard evidence for troubles in asian frog populations