MarsSeed [1] filed a deletion request for webkit2gtk-wpe-bin [2]:

Outdated duplicate of [extra] webkit2gtk.

Despite the -wpe suffix in the name, there is no differences in
dependencies: both use [extra] wpebackend-fdo as backend.

[1] https://aur.archlinux.org/account/MarsSeed/
[2] https://aur.archlinux.org/pkgbase/webkit2gtk-wpe-bin/