We (4teamwork AG) have used ftw.raven in production for years. We're currently testing it against both 4.3 and 5.1 (as with all of our packages, refer to the test-*.cfg files at the project root to quickly determine what we test a package against) - it should 'just work', if following the documentation.
But, as our documentation states, Be aware that there is already a standard logging based Zope / Plone integration for raven. You should use the standard implementation unless you want the exception hook based integration. - https://docs.sentry.io/clients/python/integrations/zope/ - are you actually sure this is what you want to do instead of just using the basic out of the box log parsing integration Sentry already offers?