The dealership won't be able to do anything about your LFB issue. You can easily get around this by first touching the brake pedal, then accelerating, that works 100% fine. In order to enable LFB, you'll need to read the file out of your ECU and you'll need to flash a modified file yourself, for things like this dealerships are totally useless.

Just a further comment, I did find reference to this issue at s4wiki.com as follows;

Left foot braking
Set either of these to maximum to prevent throttle cut when left foot braking:
   NWPMBBR - Minimum RPM for acc pedal value lockout on brake operation
   VWPMBBR - Minimum speed for acc pedal value lockout on brake operation

not sure if that has any impact on what I need to do next
Brian

Get to a driver school/HPDE and learn to drive properly.

left foot braking is NOT for standing starts.

Isn't all braking done with the right foot? What the fuck are we talking about here?

I assumed so too. I'm familiar with LEFT foot braking, but given as he continued to say right, I figured maybe I wasn't in the cool guy circle.

I guess I have to comment back on all this feedback...
I've been driving for more than 50 yrs both standard and auto.  When using a standard I use my right foot to brake and with an auto my left (and have for probably 30-40 yrs).  This is not performance driving and I don't race or anything like that but I will guarantee that in heavy city traffic I will outperform anyone who uses there right foot only.  I don't ride the brake but my foot is near it all the time and I don't accelerate and use the brake ...it's one or the other.  I can stop and go far more quickly and safely than by just using my right foot.  If you haven't tried it (for at least for some period of time) don't judge it.  Besides God gave us two feet so why not use them to best advantage.  Besides it is not illegal.
The only reason Audi did this (and as far as I know they're only one who do this) was because some "idiot" driver put his feet on the brake & accelerator at the same time and got into trouble, blamed Audi and sued them.  And, as far as I know this is only a issue with the DSG transmission.
There are some interesting comments on the web on why not to LFB - such as  You might stop faster so someone might hit you from behind,  It might cause confusion, It's like handwriting when you lean with you right it's almost impossible to unlearn, that is the way it's always been done so it must be the right way[/i], - slight paraphrasing of course.
If you're an experienced and safe driver this is all hogwash.

 Please learn how the DSG transmission works, Oh and since it works so poorly in your opinion why don't you offer to help vw/audi/porsche/lambo. Since the dsg/doppler/egear trans all work about the same. I do Feel your pain on some level everytime I pull a
dsg on the alignment lift it is a pain in the ass, as the car rolls back unlike when you control the clutch or the car has a torque
converter putting atleast alil load on everything.