I can't say if you're right or wrong because I have no information about this particular aircraft. It may very well have been following an engine change.
However, I can say with certainty that the L-1011's my airline flew (I'm retired now) rather frequently smoked like this at the gate on cold days not associated with any engine change. I've witnessed this many times and the amount of smoke is astounding.
As I said earlier, I was never checked out on the 1011 so I can't say for sure what causes this much smoke and it may not be quite accurate to call it "normal" because it didn't happen on every cold weather start, but it happened often enough that it was not considered abnormal or worrisome (except perhaps to the passengers).