1. Open https://en.wikipedia.org/w/index.php?title=Pam_Hallandal&veaction=edit&section=4
2. Place your cursor in the block quote, then remove the blockquote using the format menu

Expected: A Tone Check should appear
Observed: Nothing happens until you move paragraph

This is more jarring when going the other way:
Paste in a large tone-violating paragraph and you will trigger ToneCheck and PasteCheck. Marking the paragraph as a block quote should instantly resolve both these, but instead you need to move the cursor for checks to re-run.