Correct. The electric pusher is feeding through the mechanical pump on the motor. The mechanical pump doesn't have enough suction to pull any fuel from the tank on its own.
Is the mechanical pump totally inoperative? Hard to say yet, but it seems to lower the pressure when the engine is running. Something lowers it, then lowers it more, then lowers it more, until there's hardly any (<3psi).
There probably needs to be more diagnosis on what's going on with the mechanical pump. The current one looks like the $17.99 Oreilly Auto version, so i don't mind ditching the Chinesium for something a little better regardless. I've never come across a bad fuel pump pushrod, but 2024 has been full of surprises so far...
As for the electric pump, it is a certifiable mess. Continuous duty, upside down, small gauge wire (18), no cut-off switch, wired directly into the ignition (no relay), and tied-in with what is probably 3ft of rubber hose. Also, there's no regulator, so it's over pressuring the needles and seats on the carb. I'm sure there's more issues to find, but that's enough already.
Whew. Sorry for the long answer.