If I click a link in a Gemini browser, I know for sure that it will not start loading and running a ton of resource-intensive scripts. I know that it will not start autoplaying audio or video. I know that it will display fine in plain text, every single time - so it works in my terminal, in Emacs, on my phone, etc. And I know it will be fast.
Yes, I can use NoScript, uBlock Origin with comprehensive lists, etc. and start to approach that level of simplicity... but every other link I click will likely be broken in weird and wonderful ways. In Gemini, they all work (provided the page still exists, of course). I think there's some value in that.