Good question this ++ for that. I often think like this and some times I write my own simple module(in terms of number of lines of code) for solving problems rather than using a third party one, since there are lot of dependencies and it is really painful, it pulls thousands of lines of code un-necessarily, but it might be designed to work in all platforms, much reliable, etc, I seriously don't want to complain any third party module, this is my opinion

What you are trying to do? UNIT Testing or adding any new feature into the code?.
if UNIT Testing, better don't disturb the flow of the code, just test as it is.
if you are planning to add any new feature or if you want to re-engineer the entire code(since you don't like to load 800+ modules and you think it can be done in a simpler way), if you know the clear requirements, better write you own code which uses simple set of modules which meets your requirement(provided if you have time, if you don't have time, just understand the existing code base and find out why they have done like that, nothing would have been done for no reason, better note down drawbacks and do it later when you have time).