Yeah, can be pretty helpful and save on time and ammo. We use similar offset zero targets in the Army to zero at 25m and have a 50/200 or 300M zeros. They work well if you know your height over bore, or you have folks that are restricted in what they can use. I have also seen offset targets like that for lasers like a PEQ-15
I run my EOTech at 2.26", so it'd take a little more fiddling, or a different target, but that'd get you close.
Here's the current Army Graphic Training Aid for offset zeros: