This new 1.1.3 version of the Basic Toolbox has two new Sentinel-2 reader for the L2A data.
It solves the issue with the detector footprint of band B1 which is discussed here:
One of the readers uses the native 60m resolution of B1, the other scales the B1_detector_footprint to 20m.
The full release notes are available here:
Releases · eomasters-repos/eomtbx