It's still 0.1s off since the 1 foot rollout is 0.21s (see the 0-60 with and without rollout).
Both this calculation Porsche Taycan Vs Tesla Model S: Review, Road Test, Race, Charging and this method Porsche Taycan Vs Tesla Model S: Review, Road Test, Race, Charging on both videos indicates ~0.3sec.
Easy sanity check:
time = sqrt(2*length/acceleration)
if acceleration = 1g ~=10m/s^2
then time = sqrt(2*0.3/10) = 0.245 sec.
In real life however it takes more time since acceleration is not a constant 1g from start but it has a ramp up as you can see it on the graph.