Justified text was removed from the WordPress text alignment options in version 4.7 due to concerns with readability. In building the block editor, we didn’t add this back, mostly because the reason for removing it in the first place remained valid, but also because adjusting the alignment of multiple paragraphs at once did not exist at that time. It was added to WordPress.com as an extra option, but the experience of applying it is bad, for the reasons you’ve outlined.
Legibility problems aside, there are cases where people need justified text; it could be due to a newspaper styleguide, or just a request from a teacher. In both those cases, justified text should arguably be a global toggle, a change to the default text alignment, so it applies to every post and page there ever was, as opposed being a property you apply to one paragraph at a time, every time you write.
A potential approach we can take is to add that feature in the “Global Styles” sidebar.
Justified text was removed from the WordPress text alignment options in version 4.7 due to concerns with readability. In building the block editor, we didn’t add this back, mostly because the reason for removing it in the first place remained valid, but also because adjusting the alignment of multiple paragraphs at once did not exist at that time. It was added to WordPress.com as an extra option, but the experience of applying it is bad, for the reasons you’ve outlined.
Legibility problems aside, there are cases where people need justified text; it could be due to a newspaper styleguide, or just a request from a teacher. In both those cases, justified text should arguably be a global toggle, a change to the default text alignment, so it applies to every post and page there ever was, as opposed being a property you apply to one paragraph at a time, every time you write.
A potential approach we can take is to add that feature in the “Global Styles” sidebar.