I don't have a problem with making the tweak tool easily available,
but I have to wonder: are we failing so badly in our attempt to make
software readily available via gnome-software and search that
everything still has to be pre-installed ?

As an experiment, I removed gnome-tweak-tool and then I searched for
'tweak' in the shell overview - the tweak tool shows up among the
search results provided by gnome-software, and it is 3 clicks from
there to having it running (one to open gnome-software, one to
install, one to launch).

Is that still too hard ?