If you ask me it seems like our tcs is too sensitive stepping in before it needs to causing issues.
I have had the exact issue described happen 2x within the first 5000k/m on my car.
Had the transmission slip into neutral @ a stop sign and the only way to get moving again was to shut the car off and restart it. Both clutch pairs seemed to be stuck in limbo because I could not select drive or S.
Had it happen in a somewhat busy intersection too the person behind me was not impressed.
2nd time it happened happened on a deserted back road after coming off the throttle and back onto it rapidly was in some twisties.
Now have over 20000k on the car and it's been well behaved.