Is that site legal or a piracy site ?
There's nothing to suggest the site is in any way "official" or connected to the magazines so it's technically illegal... But:
(1) Most of these were PD or demos anyway
(2) The few full programs are generally obsolete or have since been made PD or released under GPL (OctaMED & DOpus 4 respectively)
Not making excuses but they're just old coverdisks, it's not like they're leaking OS4 code or something!
As for word-processors, the commercial ones were always better. I never found anything in the PD that satisfied me. Surely you can find an old (original) copy of Wordworth somewhere?