The text is too close to the form.
Checked in production at fr.wp and also at en.beta, in French and English.
Change 757685 had a related patch set uploaded (by Urbanecm; author: Urbanecm):
[mediawiki/extensions/GrowthExperiments@master] SpecialClaimMentee: Wrap description in a <p>
Change 757685 merged by jenkins-bot:
This is now done @Trizek-WMF. Will take effect with the next train deploy (ie. in a week).