It would be a must-pick, but I hope that they would fine-tune it to where its a counter Lucio (whom is the center of GOATS). Similar to how hit-scans are hard counters for Pharah. The only solution to resolving GOATS without nerfing Lucio, it by adding a hero that counters him.
I’d be all for a nerf to Lucio’s amp it up but as I discussed with another person here, it should affect his teammates rather than him if there were such a nerf.