The creator of the collection is using the logo by putting it on the web page. Also, the logo is licensed under MIT, which he probably cannot do, if he doesn't hold the rights.
'Using the logo' is different from 'using the logo in a manner infringing the holder's trademark'.
Simply displaying an Apple logo, for example, and saying 'this is the Apple logo' is perfectly valid. Pretending to be Apple or Apple-endorsed is a different matter.
Simply displaying an Apple logo, for example, and saying 'this is the Apple logo' is perfectly valid. Pretending to be Apple or Apple-endorsed is a different matter.