The warning you get for a shield group having less recharge than its current upkeep is also being shown in ship mode.
In combat, the message distracts from the fight and with battle damage, several shields could be spamming it.

Only showing this message when you are in build mode should cover it.

There's also a typo in it:
because it's upkeep is bigger than the recharge
->
because its upkeep is bigger than its recharge

Example of how it can easily clutter your HUD in combat: