Although... it can be unsafe, depending who you're facing. But if played right, if you show you can use long distance attacks correctly, it will make your opponent think twice about pressuring you.
Playing at a distance when have the life lead can make your opponent run at you, and what happens when they run at you? They don't block. It can leave them in a vulnerable spot. The pressure is on them to make the first move, causing them the greater chance to whiff and that's where your whiff punish comes in or block punish