@Xyc0 You should realize, it's lifehack, but not a solution. Because not every Mastodon client app has an ability to open hidden media as link, especially critical for private toots.
It's not about user protect, admins protects themselves from the law of their governments, because media content downloaded to their servers. Therefore, such instances is highly unpredictable, who know what politicians will forbid tomorrow. But admins shows that they are ready.