The "everything is a module" mantra makes many things easier.

One example is exceptions : when a handler is enabled and configured, almost any exception can be transformed into an IPC opcode to a given module (could be #1) with the entry point hardwired as the exception number << 16. That's 2048 entries with fast execution. Since IPC already saves some essential info on the control stack and the trampoline area acts as a table, there is very little extra HW to add.

Furthermore, since the trampoline zone is configured per thread, the exception handler can be swapped for a given thread, during debugging for example. Or a custom page table miss handler can be provided. This adds even more flexibility and allows novel extensions.