I think dhh's quote just isn't very good -- of course someone who has so much identity invested in the ecosystem is going to say "I looked around and still nothing is better than ruby!" Well maybe not even of course, not even every "BDL" is as cringingly self-promotional as dhh, some have a bit of humility.
i agree it's not a great look.
Hopefully the website will keep getting regularly updated and tweaked (software, is a living organism!), instead of being frozen in amber for a decade like the last version!
DHH is the lead developer of the most popular ruby web framework, Sandy is the author of a mildly popular book. Not knocking her work, but DHH is magnitudes more influential.
Sometimes it's nice to just let people rest and get on with life.