This is one of those areas where percentage and actual count tell different stories. "doubled" vs "increased by about 1000" are very different stories when viewed in the context of "all the individuals of a species across the globe"

it’s easy to double when numbers are under 5,000. Many ecologists are not as rosy as the indian government about this... 95% of their range is gone at this point and there’s not a lot of genetic diversity; a single disease can wipe out of the population. We’d need nearly 100,000 tigers to have the diversity to avoid this, and we’re not on track for that by a long shot.

https://news.stanford.edu/news/2014/april/tigers-genetic-div...

https://imgur.com/a/Yy59VjX there is no land for wildlife populations to grow as we're using the land for the meat.