As I wrote, yes, a permission system is planned. But 1. we cannot oversimplify the problem of getting from here to there, 2. permissions are not a panacea. If you look at the scorecards for a few plugins you'll immediately see issues that a permission system wouldn't catch.

Millions of people depend on thousands of Obsidian plugins. We cannot just flip a switch and break everyone's workflows overnight. It will be a gradual process. We're working on it, and I hope you'll at least concede that this is better than nothing.