In some widths the last line might contain just a couple of words, making it look peculiar.
If you use the trick above with a lesser margin on the pseudo element you can achieve a more pleasant minimum number of words in last line, e.g. a magic number of 30 - 60 % or vw.
Yes I originally had it set lower but left it at 100vh just to show the effect that it does have on the justification. A smaller value would stop the orphans being forced to justify and would be more pleasing.