Somebody seems to understand the need to disconnect power, but is a little weak on understanding what "lock out" means.
But, here's another scenario. It's also possible that someone told the worker who affixed the tag that the rest of the equipment controlled by the components in that cabinet had to keep running while he changed the motor, that disconnecting the power feed to that enclosure was unacceptable. This may have been the only way he could figure out how to disconnect power from the motor he was working on, and to alert anyone who might look in the enclosure that the open fuseholders were intentional. He might have been afraid that if he raised a stink about it, his job was on the line.
Personally, I don't think that was the case, because if he was savvy enough to figure out which contactor controlled the motor and which fuses were in the line to the contactor, he should also have been savvy enough to put the fuses in his pocket, making it just a little harder for someone to restore power while he was working.
In any case, I would send that photo to the management of the facility. They should be made aware that somebody on their payroll is tolerating unsafe practices.