I've been to the track enough and read enough car magazines to know that there are a SLEW of stock cars that will run mid 14s or faster. Same as a cruiser.
Now Edmunds has the 2013 V6 Accord and Altima running 14.3 and 14.6 respectively. Those are pretty hefty, 4 door cars with a reasonably soft suspension. Running close to what some cruisers run and you going to say that a cruiser isn't "slow" by bike standards?