You’re bumping into the trees looking for an imaginary forest. It’s not necessarily a bad idea to attack with 2 inf 4 fig in LL. In fact, there is no detriment to it as long as it’s a 2 IPC territory. In fact, you should if it’s a 3 IPC territory. The extra 3 IPC inf you send to hold the territory already pays for itself, collecting 2 from the territory and dealing 1 IPC damage when the enemy comes. It more than pays for itself if it’s a 3 IPC territory. Also, it forces a response, whereas if you send just 1 inf, the majority of the time it dies and the enemy can choose to either send nothing, send one inf, or stack it with fighters since he controls it at the beginning of his next turn. Or perhaps something can blitz through that you didn’t want to.
And even let’s just say you’re right because we’re ignoring all the circumstances in which you do want to actually take the territory: this may favor the Axis early on in one fight maximum per round, but it is very slight nickle and dime we’re talking here, and the Allies can easily catch up with all those fighters you love to build with the Allies.
Plus, why would I put 2 inf in a territory like that? Do you not think the opponent knows that you will send 1 inf + 4 fig? It seems like you’re acting so surprised and you’re instructing me on what you would do, but I have already known this for LL as well. I’d just keep 1 inf to the territory if I can manage. If there’s 2 there it’s only because I overcompensated, but because I was unaware of your tactics.