Yes, absolutely they should be on social media marketing themselves, putting their name out there, selling stuff, whatever it takes.
Folks take cheap shots at Emily but she has done just that and built a little career for herself. Good, bad or indifferent, she's getting paid. What's wrong with that.
It's not the wordsmithing they need to have, its the temperament. Just a few thank you's and playing nice would go a long way. Ignore the "knockers".
Plus, if they had a strong SM presence, some smart marketing folks might put a few coins in their pocket to push their goods. Just saying.
This is the correct answer. Everybody else is living in the past, it doesn't matter what the drawbacks are.