The author dedicates an entire paragraph to how much they trust the Obsidian team. It isn't open source purism, they are warning users that good intentions don't prevent a developer from writing software containing vulnerabilities.
Usage of user-created plugins and access to cloud accounts aggravates the risk posed by a vulnerability.
Open source reduces vulnerabilities over time, so those who want to heed the author's warning may indeed want to switch to an open-source Markdown editor. Just not because the Obsidian team is Evil.
The title is either poorly chosen or shows a different intention than the content of the article I would argue. The objective seems to scare readers, and then nuance the statement in the article. Some call this clickbait, at the expense of the great obsidian team.
Usage of user-created plugins and access to cloud accounts aggravates the risk posed by a vulnerability.
Open source reduces vulnerabilities over time, so those who want to heed the author's warning may indeed want to switch to an open-source Markdown editor. Just not because the Obsidian team is Evil.