The current implementation of the ILS and how it is displayed on the HSI of the aircraft uses a fixed distance from the glide path/slope at all ranges, making it very easy to deviate significantly from an approach in hard IMC, especially as you get close to the touchdown zone. Basing the sensitivity of the ILS on the radial distance from the final approach course (as in real life) would make it much easier to execute the increasingly sensitive corrections required on final approach.
Reading (pretty sure baha himself doesnt need this, IIRC he’s instrument rated IRL):
https://www.pilotscafe.com/Understanding-ILS/