from() and fromTo() tweens are special as they set
true as soon as they are created. This helps especially when creating staggered builds where you don't want elements to appear until scheduled. The one case where it is important to change the default behavior is when you have multiple from()/fromTo() tweens on the same property of the same object. The video below explains in detail.
the default of
immediateRender: true however can cause problems when creating multiple from() tweens on the same properties of the same element.
Notice in the demo below that you don't see green animate a second time.