I thought there was a message about this in 4.3, but I guess I was wrong.
I own the nexu and the personal warbot, and yesterday I did some rudimentary tests to see if their DPS had been fixed. I believe there's some bug that gives them force bonus damage or something instead of tech, when none of them actually have force-based attacks.
Anyway, on identical groups of mobs, with identical influence levels (Kaliyo and Xalek were my controls), they routinely took 2.2 times longer to kill targets than Kaliyo/Xalek did. Their tanking suffers similarly, since they need some DPS to hold threat.
That's a pretty serious lack of DPS for companions I paid money for. When will this be fixed?