Is Hex worth it at high levels?

[GeneralVryth]

You are free to add requirements that are not in the rules. But then you're following your houserule. You need components when you're casting the spell, that's all the book says,.not when you're using bonus actions or actions the spell gives you.

Actually I am following the basic rule of the game, that a DM makes rulings on things, especially where the books are silent. Calling something a houserule just because you don't agree with an interpretation doesn't make it one.