Yes, it was done intentionally.
In this mod, there is a slightly different "battle atmosphere" so this music was inappropriate.
This is constantly confusing and does not allow you to listen to the surrounding environment, and it also showed that the player was noticed by the enemy.
In the future, i will try to remove this completely or make it work in a different way. For example, the feature of "silent ninjas" that silently creep up on you has been removed, but added sounds to identify different hazards....
I'll tell you more - i certainly understand how battle music affects player.... and i specifically want that to not happen - here you do not need to fall into a "battle rage" or in a trance . The secret is that - we don't need external stimulation if what's happening is interesting enough.
At the end of these files, you will see commented lines:
music.xml
dmscontent.xml
uncomment this - you can return the battle music.
In general, for now - it's just a matter of taste, but then i plan to redo it thoroughly so that it works differently.
For vanilla, one thing is suitable, and here another... it's just vanilla habits