You're really paranoid (and not paying attention during installations)...
Plesk installation includes BOTH drweb AND kaspersky... YOU select which one to install, they BOTH have trial license keys provided, YOU can decide which one you want.
This has been so since 7.5.0. So either you don't pay attention to what you install ('default' isn't always the best way) or you're really missing something.
I just downloaded the 7.5.0 package to verify this. SWSoft isn't abandoning anything, you just need to pay attention to what you install