We are a publication that puts out hundreds of articles a month. We have +5000 medium priority errors showing that our title element tags are too long. The title tag is structured like this: [Headine] | [Publication Name that is 23 characters] . However, since we are a publication, it's not practical for us to try to limit the length of our title tags to 70 characters or less because doing so would make the titles of our content seem very unnatural. We also don't want to remove the branding because we want it to go with the article when it's shared (and to appear when some titles are short enough to allow room in SERPs).
I understand the reasons for limiting characters to 70 or less with regard to SERP friendliness. We try to keep key phrases in the front. People are more likely to click on a page if they know what it's about etc etc. My question is, do the longer titles affect the ability for the page to rank in search? To put it a different way, if we altered all the +5000 of the title tags to fit within 70 characters, would the page authorities and our site's domain authority increase?
I'd like to avoid needed to clean up 5000 pages if the medium priority errors aren't really hurting us. Any input is appreciated. Thanks!