What's the concern? Just because a specific tool exists doesn't mean you have to use it, or even have to learn how to use it.
It can be helpful to know that various tools exist, so that you can evaluate them later on if and when there's a need to make a decision, but otherwise it's totally fine to stick with your current toolset.
In this specific case, Parcel looks like it's got some interesting ideas, and it might be worth looking at if you're starting a new project from scratch, but there's no need to go throw out an existing project's build config just because Parcel exists.
This is all true.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.