The House Manager, the Stage Manager or even the volunteer usher could be an alternative to a stressed out AD or Director who fixes his or her gaze on a point above the last row, and who can't get off the stage fast enough. Find the person who gives off an inviting energy, speaks comfortably in front of the crowd, makes eye contact and speaks clearly.
The live curtain speech, if you choose to have one, cannot be looked at as a formality.
It is an opportunity to let people know that what they are about to watch was not manufactured and put together on a soundstage in Los Angeles, and it was not animated by second and third teams in South Korea.
And it communicates an appreciation that they came to you. Don't underestimate the sacrifice the audience made to arrive a specified location, at a specified time, to watch what you have done for a defined period with no interruptions.
Because let's face it, in this day and age they really didn't have to..