I have multiple objects that needs to react on the "update" call.
Eg: a slider, a text, timeline control buttons and so on... they are different entities/objects that receive a TimeLineMax object as a property.
To wrap it up in one call is not possible; when the timeline is created one cannot tell how many of these objects will be.
I wrote yesterday a wrapper to cover my situation, I will create a codepen with it and post it here.
In regards to the performance concern, there "might be" performance impact, though I personally doubt that in most of the cases that will be an issue. A benchmark would answer this.