Well the article states that the issue was more managerial than quality of employees, granted, it is very biased since their statements are from ex-Reddit employees but some of the quotes in the article state that they wanted to focus on fixing the important issues (moderation tools etc) but the managers demanded more product improvements that generate profit, and moderation tools are not it. After all, this is the same platform that let The_Donald for years, I don’t think moderation was ever a priority at all for Reddit