You can see pin names only when you hover over a component, so you can see pin names for only one component at once. It's important to see all pin names simultaneously to make decisions during editing or to understand schematic during reading.
This feature is so necessary that Cornelius Robinson hardcoded it in SVG!
But adding pin names in SVG is a time-consuming process and you need to add pin names to terminals anyway. So I propose to add to the Flux schematic editor selector similar to Layer Selector in PCB view.
pin names
simulation plots