@Thomas Richter
You are ignoring the fact that brewing a custom rom for the Amiga user has become a very common sport, and I cannot blame them.
That is why the scattered modules approach sucks.
Every Amiga user out there has different acquired tastes for different choices of components, some enjoy replacing console handlers, others require patched modules for the system to work on their new hardware (remember that traditional Amiga manufacturing ended between 1994/1996). So new hardware most of the time requires doing funky things to the kickstart to adapt it. I know it is not a desirable situation, but it is certainly better than not having new hardware at all.
There is no universally accepted use regarding modules. I understand that from the the developers point of view this creates a support mayhem, but from the user point of view, this is certainly salvation.
Just ask around here, and you will soon notice that nearly everyone, for a reason or another, does something "non standard" to their rom/kickstart modules.