When I am review-banned, the direct effect is that when I click the review icon in the top-bar, I get this:
This doesn’t tell me anything about what's going on, just that all review queues have miraculously become unavailable to me. It doesn't show that it's because I've been banned, or why I've been banned, whether it's for failing audits or whether there is a custom message supplied by a moderator. Only when I new-tab-click that button, it takes me to
/review, or when I manually navigate there, I get the more informative message, as intended:
This is confusing for review-banned users who use the dropdown in their standard workflow (example). I only performed the above test to reproduce the experience of a confused review-banned user on a site I moderate.