Sure, it's nice to have mods that care for performance, but you can't demand from a mod to take care that no one kills performance.
Though I can understand the sentiment, I do disagree, especially of the mod author desires to have their mod included in a modpack destined for deployment on a server. In general it has to be expected that a mod will be installed alongside of other mods and all should play well in the server ecosystem.
To be fair a lot of modders out there are not familiar with performance profiling and tuning, or heck, may not even be aware of such a thing. Of course, it has to be stated that I am biased this way because I spent the last 20+ years of professional software development on server side systems.
Good idea! Though you could just disable BC's chunkloading.
I don't think the features are equivalent. If chunkload of quarries is disabled, those chunks will unload as soon as the player is out of the area. Or am I misinterpreting how it works in BC?