this is the sort of thing that makes me happy i'm no longer involved in the OpenBSD world. httpd & previously smtpd are two replacements that (in my opinion) have little additive value beyond existing, community-adopted solutions (e.g. nginx and postfix), diluting effort where it is needed.
does the world need a new httpd? maybe. but the world needs other replacement software to be done first because it'll have a greater impact.
for example, OpenBSD could invest time and effort in maturing static code analyzers to assist in code audits (especially of ports).
i suspect this new httpd was done less because it was needed and more because it could be done. that's the attitude i disagree with.