'Brilliant finish' - but should Sano have been on the pitch?

Kaishu Sano scored to give Japan the lead against Brazil in their round of 32 match in Houston, but the goal has sparked controversy. Sano's strike came moments after he appeared to escape a second yellow card for a challenge on Matheus Cunha. The incident has raised questions about whether the player should have still been on the pitch to score what was described as a 'brilliant finish.'