There's still a lot of information coming out, a lot of it conflicting, so that's hard to say.
And frankly, the Venezuelan military is absolutely tiny and has been facing the same economic issues as the rest of the country. They have 24 F-16s, but rumor is none of them work anymore, maybe some SU-30s, but those would be shot down pretty much as soon as they were scrambled. There was pretty heavy bombing before hand to knock out AA. And they bombed Chavez's tomb, which is quite a dick move of there wasn't any AA there; blowing up a graveyard for shits and giggles on an op is some shit even cartels have a little bit more respect than to do.
IDK, the whole thing seems like equally could have been mostly what it says on the tin, with no more than the normal intelligence HUMINT/SIGINT/*INT cloak and dagger crap to have the right intelligence.
