Please define limited in this context? I don't think I'm following.
But, Mishael is choosing to play this character cold and stiff with dry humor because she thinks this is how a lawyer would behave. She could infuse more life into the character if she chose. But she wants to make a clear distinction between Hilary and Amanda.
Sometimes, I see more pizazz in her portrayal when she loses up. Even if Amanda had a clear goal/throughline and was driving story, Amanda would still be quite dry personality wise. But by no means do I think what you're seeing is the writer's fault. This is on Mishael.
My problem with Alan is his timing with interjecting when someone is in the middle of a story. A good host knows when to interject and when to let the conversation flow.
I find when it's about a show he has no connection with, he doesn't say much. I think he let Susie Pratt go off about GL cause it was before his time..same with Sharon G about AW and Holly G about OLTL.
And in his SFT one..Marcia and Michael spoke and in some cases had more knowledge of soaps than Alan did.