Then how do you explain this exchange?
LAFORGE: Blowing that hydrogen exhaust through the Bussard collectors sure put on a nice light show.
RIKER: Harmless, but effective. Were you able disable the photons?
LAFORGE: Just in time. That's why you're still here.
I take it more like "tongue in cheek"... Basically you have this wimpy Pakled vessel up against a huge high tech starship. Equipping it with photon torpedoes seems utterly ridiculous, not to mention that Enterprise sensors would've easily detected the physical structures that are required for launching said weapon. As Timo stated, there's no way Geordi could have given them that tech just by making some modifications of their bridge electronics.