I think Tinder specifically has far better grounds for having all this data than most tech companies. After all it is their core function to try to match people, and to do that well you need to know the people.
I wouldn't go so far as to say they need all this data. The service could work fine with just self-reported preferences and profiles if you wanted it to.
"There is significant discrepancy between a user's stated dating preference and his/her actual online dating behavior." For how much discrepancy, read the paper.