Reddit will never be normal again after this. Someone else said it recently - It doesn't matter if only 5% (or less) of the user base leave because this 5% will most likely be the most passionate and active users actively creating content that is not advertisement.
In the long run; the content quality will decline because of that.
In addition, these statistics likely do not distinguish what is bot traffic that are scraping the site vs users. The bots will keep scraping.