You can set up any position you like and choose one of the bots to play it.
https://support.chess.com/en/articles/8597997-how-can-i-play-a-game-from-a-custom-position
https://support.chess.com/en/articles/8572788-how-can-i-play-the-computer-from-a-custom-position
I've seen every response from computer bots to the Smith Morra, and 99.9% of the time it is to decline it in increasingly unusual ways.
Are the bots coded to not accept gambits? I'd love them to play more like humans, and the first step would be to mirror what human players are more likely to do - and the majority accept gambits!