LGPL Licence /15char


I would like to use a package on a Meteor project that will be potentially commercialised.
The package is under LGPL v3.
But as seen there http://programmers.stackexchange.com/a/47048 at the end, it says :

If you want to avoid these problems then you need to use things with a different license or at the very least the LGPL which will allow run-time calling of libraries without the viral-spread of the GPL conditions back to your code.

Does using this package on a Meteor app can be considered as run-time calling the library ?
In fact, the app can be distributed without the packages, but the “package” contains the packages.

The thing is we don’t want to publish some part of our source code.