If I owned a venue where bands played, I would own baffles of my own and request that they use them. I honestly like them and almost bought one for myself several times. A friend of mine uses his pedalboard case as a blocker for his amp. He sets it in front of the amp so nobody ends up in the beam of the speaker. I put tilt back legs on my amp so I can keep people out of the beam and point it at the back of my head.
With the way things are evolving in my area now, being able to do it silently is the best way. The movement to a silent stage is well under way here.