Does anyone notice if their automatic shifter handle flexes (moves slightly from front to rear) during hard to moderate acceleration or under hard to moderate braking???

Our 2011 CTS4 has 300 miles on it and I noticed this the other day when driving it a bit harder to see what the engine could do. Other than this annoyance, the car is great!

I wondered if this movement was normal....does the shifter have a direct link to the trans in the AWD model??? Or, is this a loose or torn trans mount allowing some play in the system.