You could argue that, yeah, but the definitions of Assassination are still pretty clear. It’s not specific to political motives. Merriam-Websters dictionary defines it as:

murder by sudden or secret attack often for political reasons

And the Oxford English Dictionary has it as:

the murder of an important or famous person, especially for political reasons

Most other definitions follow the same vein. Thats what I meant by it being an understandable misunderstanding. Both definitions use political reasons in it but both also say it’s just most commonly used for.