Gendanken,
I think she's looking at it from a purely artistic perspective.
What you're describing is a migrane.
I can understand that. However, life isn't a poem.
If you use the word 'cope' when it comes to something like synasthesia then it is true.
If you think of it clinically, or react to it clinically, you will experience it clinically as a 'condition' not an albeit tormenting blessing.
It all depends on the depth of the cross-modality. The sense that you're able to make of the world. There's a huge difference between Mozart's ability to envision music as a specific color and being overwhelmed with seemingly random sensory information that tells you nothing about the world in which you live.
As I said, the brain is multi-modal and thus is the poetry aspect of this discussion. We can make of the world a synasthetic wonderland. But, suffering a hit to the head and smelling rotten meat or shit in place of seeing the color blue or some such is another.
It's poetically beautiful to think of things like colors for music, but consider the example of the guy who had to leave his girlfriend because of what her name translated through his cross-modal circuits as.
It would take a huge adjustment. And it may not be pretty at all.
It would still be interesting though.
And there would certainly be some cases where it is a blessing. A tormenting blessing.
But sometimes it would be only torment.
I suppose I'm thinking of a worst-case scenario mostly as a reaction to posters like vslayer who are saying things like: "why wolud you want to correct it, i find it is an advantage if anything."
It may be somewhat of an advantage in certain situations. But the odds are more for it being a hindrance than a blessing.