To me this looks awful. I think the align function should only take into account possible collisions which of course there are none here.
Where this immediately becomes a problem is you end up have to choose the lesser of two evils. Either nicely aligned chords floating out in the stratosphere or that awful altered bass offset.
In the meantime, if you don’t mean separator of the same height as the letters, you can open the chord symbol editor, add G/B, double click the separator and enter those values:
To be fair, the other symbols will drop down less than a micron with the alignment off, but it’s still quite convincing even though it’s not quite what you want.