I don't see the point in comparing the two but if you want to, Twitter had much better near-term post-IPO performance than Facebook did. We all know what happened after that. It's almost as if during a period where little fundamental information is available (post-IPO), something else must be driving trading (sentiment), while when more fundamental information is available (first earnings report), fundamental information plays more of a role.

Why would then companies want to cater to sentiment-driven investors?

How are investors supposed to value the company right now at this moment?