You're comparing a tool which you have source for and control over with a service which is out of your control. The comparison is of apples and oranges.

Compare something like flow [1], reason [2], or prepack[3] as it's tools which serves you rather than the company behind it with access to the source which is the same as the case for weboob if you want to compare against facebook. I don't see an issue with using them though as they don't collect data on you.

[1]: https://github.com/facebook/flow

[2]: https://github.com/facebook/reason

[3]: https://github.com/facebook/prepack

[4]: https://github.com/majestrate/XD