Is this really good advice for PvE?

For PvP where everyone and their dog is using the STF shields with high plasma resists, then plasma weapons are a bad choice - but for PvE vs the Borg, unless the NPC's have a specific resist against plasma damage, then I can't see a problem. I recently outfitted my fed sci officer with a full set of purple MK XI plasma DHCs and Turrets + blue MK XI plasma tac consoles for his advanced escort from the exchange for chump change, and although the proc is underwhelming, I can still burn things down very quickly.

Personally I like the disruptor proc the best as it acts as a team damage multiplier, but the most useful thing to bring for STFs is IMHO attack pattern beta, and a full matching set of weapons + tac consoles.