Inconsistent Rampage passive

[thorn escarp]

Hello, I found the following inconsistencies regarding Rampage's flamethrower passive:

1. Rampage never uses his passive against bots, only buildings. Also, when an enemy bot walks into his flamethrower, they don't get damaged.

2. the passive only ever hits one target, despite saying it hits "close enemy targets".

3. Rampage doesnt use his passive on a target that he reached via ability (unless he switches target then returns to the first one)

4. Sometimes Rampage uses his passive every 5s on a target like the tooltip says, sometimes he doesn't (he'll use the passive initially but it wont trigger every 5s afterwards)
   Whether a building is attacked a) with passive or b) only normally + 1 initial flamethrower is determined randomly everytime he moves to a new target (shown in next msg).

Below are two battles with the same Rampage and base layout, but Rampage's attack patterns varied each battle.

A=attacks with passive every 5s (matches tooltip)
B=attacks only normally after an initial passive (doesn't match tooltip)

First video, 6 buildings are attacked the following ways, in order:
B > B > A > A > B > A
Second video:
A > B > A > B > A > B

Because his attack sequence varied between battles despite the same setup, i think that whether Rampage passive works as intended is randomly determined every time he moves to a new target.