Yes, disabling site-specific zoom is one of the things that Resist Fingerprinting does.[1] If you want to use site-specific zoom while keeping Resist Fingerprinting enabled, the Zoom Page WE add-on[2] should allow this. I've just tried it and it worked for me.
[1] https://bugzilla.mozilla.org/show_bug.cgi?id=1369357
[2] https://addons.mozilla.org/en-US/firefox/addon/zoom-page-we