There's just no good way out of this.
Option 1: this is a placeholder they forgot to replace. Still bad, just because it's not done in public, it's still disrepsectful
Option 2: They did it intentionally, hoping people won't notice... Absurdly horrid and luckily, least likely possibility
Option 3: They just googled a picture and didn't source it. Still bad, cuz that means they used an image without getting a license for it. Because if they intended to pay for it, they'd quickly find out that it's not a stock photo for sale at all, and find out what it is in reality.