To answer the OP's question, yes there is at least one legitimate time when airborne at absolute minimum speed is done.
I used to fly a transport category aircraft on skis and the takeoff procedure was full back stick until the nose lifted, check the attitude holding it off the snow, then when the mains were in the air, push forwards, holding it in ground effect until v2 then climb out.
The stall warning is blaring the whole time until speed is gained in ground effect. The nose rotation speed depended on CoG and snow conditions, but was definitely below Vs.
Of course you are airborne below vmca, so "V1" was V2 but there is no temptation to keep going as you're not about to run out of tarmac!