Effing hell. This is getting dumber and dumber, and I don't think there's any limit to how dumb it has already gotten. The air-launched Brahmos is simply the same land-based missile with a smaller booster. It's not a dedicated air-launched missile that was designed from the ground up like the ASMP was.
It's the same reason why SAMs are so much bigger than AAMs. The design philosophy itself is completely different.
If you take the Akash and put it on an MKI, all you can do is make the booster smaller, but the missile will remain of the same size and dimensions. Then someone like you will start comparing it to the Meteor instead.
Get this right, the design philosophy is entirely different. Neither the Brahmos nor ASMP are comparable to each other, it doesn't matter how old or new the tech is. It's no different from comparing a pistol to a rifle only because both fire bullets. Both are meant to hit different targets using different bullets at different ranges.
Design philosophy.
Design philosophy.
Once again, design philosophy. Pistol vs rifle.
Design philosophy.