Apparently this mod does not work with the other bulk rail loader mode, and I would like to know why there is no synchronization between these 2 modes that are very useful in the life of a player in factorio. Is there any possibility for these 2 modes to work together in the future?

I don't have much of an issue with the bulk rail loader mod, you might have to change the option in bulk rail loader to accept other items than ore.

I had to position them quite specifically like this: https://imgur.com/a/SK1sJ0S

Disable Automatic Allow-List and ensure Bulk Rail Loaders/Unloaders accept all items instead of just ore.