I just get the impression the PM's at Twitter don't actually use it, and worse, engage with people who use it, enough. I follow a ton of CMOs, social media directors, agency heads, people who use Twitter to drive business and commentate regularly on their industry, and they have expressed disdain for product direction decisions for years around the "mobile-ification" of the desktop experience. Now it seems they're pushing total usability-hostile 'features' to their desktop webapp.
Really, who on earth over there made the call that two tweets visible if there's an embedded image, even on a large 27" 1080p monitor, was a good idea?