Does Rito think Quinn is fat?
because I seriusly fail to understand how doesn't she have any special interaction between her ult and her basic abilities. I mean her ult could turn her Q into a vault/dash ability allowing her to cross walls and speed towards a direction (of course spending your Q and maybe dealing damage and stoping if crashing against targets). But my guess is that Quinn is fat and Valor is now an underpaid bird that won't be fighting Quinn's battles or flying over walls any time soon, not while carrying the fat ass woman we know as Quinn. I understand you Val, the crisis is getting hard.
For the OP's: she would be spending her Q, doesnt add damage to her kit, and it is just utility/reposition which is only available while ulting, it would also prevent her from using Q while ulting to poke, she would have to manually deactivate R to poke Q while ult, therefore it increases the skillcap on Quinn... and also fulfills the Flying fantasy Rito failed to achieve: because Valor feels like a taxi cab (underpaid).