VIDEO : Why Is This Vacation Picture So Funny?

Recently, Alaska Airlines posted a picture of two women walking on a Hawaii beach. According to Business Insider, people find the picture super hilarious.
They say the reason is because, "there is only one set of footprints in the sand rather than two..."
Many viewers have made jokes as to why there are only two sets of footprints.
In the end, thought, it is very clear the photographer did not execute photoshop correctly.