HTML5 Translator footnote brackets missing

Hello,
I've been playing around with a html5 translator for my pelican page and I
noticed that html5 translator
(docutils.writers.html5_polyglot.HTMLTranslator) is missing override
of visit_footnote_reference which adds brackets around the numbers like
this "Note [1]".
This looks like a major change (maybe not intentional) but I could not find
any reference in issues/bug or docs.

So I have a few questions:
1) What is the reason for dropping the brackets? (Bug or feature)
2) Would you recommend to use html5 translator or not yet?
3) Are there any plans or would devs consider a change or docs website
style - it's really difficult to navigate and especially hard to read for
people with dyslexia (me)?

Thank you
----
Jan