Sure, but the overall intent holds true. Not just in professional settings, it’s important to have the skill to reframe a negative comment into a positive one.
This is probably what I would say:
It sounds like you’ve got everything you need for the meeting. Would it still make sense for me to attend?
If that’s the case, then I think I’d be more useful handling some other tasks in the meantime. Please keep me updated on the outcome of the meeting
The beam is clearly decorative. The smaller posts having variable width shows that this bridge was made beyond purely utilitarianism in mind. The bridge still looks to be a generic overpass, so I wonder if this bridge exists in real life. It would not surprise me if there were other decorative elements not shown in the drawing