Using an automated script bypassing the webform to cycle through as many as possible clearly shows intent to access something you're not supposed to.
People don't just access urls at random, they will never type a url with query strings into the browser.
They click links or submit forms.
Someone pen testing a website will be deliberately circumventing those methods.
It's like running wireshark on a public unsecured network, there's likely no good reason for you to be doing it and you know what you're doing if you're running that tool.
That's intent.
Note: I'm personally very pleased that they're fighting this. Just wanted to clarify what they mean by intent.