Disclaimer: I don't have a horse in this race, and don't use Jetbrains products.
I read the dialog, and the contents is extremely clear - I can send the non-anonymized data to help improve the product, or not. It doesn't say this is a required action to use the plugin. Less is more. I prefer less text with the clear prompt to consent or not. I don't think this needs a fine print of pages long terms and conditions.
That information isn't in the dialog. If you want people to know that, it should probably be included. :)