But maybe you don't want to skip all javascript.
But rails devs heard our pain, and next version of Rails will let you skip turbolinks specifically too (not sure exactly which version it's slated for, and now I can't find the Github issue where I learned about it).
The modularity is nice... although the tradeoff is, ironically, code complexity to support that modularity.
Regardless, every new feature is additional code complexity in Rails, additional dependencies that may break with that feature and need to be upgraded (or that may require that features since it's now default, even though you need to turn it off), and treadmill time upgrading your apps or engines to work with the feature _or_ to disable it.