Why is this code deprecated?

Hi,
I’ve posted this question couple of days ago in answerhub, but still no answer (https://answers.unrealengine.com/que…5522/view.html).

So:

The gradient splines are more or less completely removed from Blueprint though, while In code it ‘just’ throws deprecating message.

Does anyone have a clue what could be the reason behind that? I’m just curious…