Yeah, I noticed that too. They did say in the comments they have gone from 2 magnets to 4 on the sensor in an effort to avoid the delay. Who knows how well it works but it is interesting.
In the end, it is just a bit of fun. You really won't fool anyone that you have a V12 under the hood (including yourself) and you wouldn't want to drive with it on all the time. I may get one to play with just for grins.