What would make you think that Corel forced that? While they are unwilling to devote server space for products they have released for free to the public (and are years out of date), they have never asked anyone to stop providing them from other sites. Usually if the links die it has to do with the host losing interest in providing space/bandwidth.
On that note, you can find WordPerfect 3.5e (including the Mac OS 8/9 update) and Corel Graphics 8 LE (which includes CorelDRAW and Corel PHOTO-PAINT) here.