It only takes a cursory glance from the side view to see that actually the ball is well inside the area at the point it's headed. At worst, the scorer is level with the ball. In reality, he's probably something like a ball's width behind it.

I'd draw lines but I'm sure offsidemodelling is on it.

Yeah, I can't count.

So here's the one angle there is that makes it look like the player may be offside. But what's important to note here is that this makes it look like the Austin #19 and the ball are basically parallel with the six yard box, which is the camera angle betraying you, because...

There shouldn't be a foot on the ground in a two-footed tackle that's "3 feet off the ground" either. Maybe try taking screenshots at the point the tackle was made instead of an arbitrary point after when it's clearly just momentum?

Showed up straight off when I pulled it up.

Hmm, let's see if I'm just looking at it through rave-green speccos... oh, turns out no and I already responded to that yesterday?

I can introduce him to stairwell Buddha, I reckon they'll get on great.