I can't help but be affected by Fate Grand Order, another game. That is all I need to give Galahad a chance, that and the fact that he IS acting out of concern for Gawain, plus he's still learning about the world.
Course, it's cause of FGO I get so confused... Because Morgan exists as THREE entities all at once: Morganna, Arthur's loving sister and daughter of Uther; Morgan Le Fay, Arthur's most viscious foe who constantly tried ot destroy him; Viviane, the Lady in the Lake who gave him Excalibur. Due to this she is the mother of Mordred (with Arthur), Agavain (Due to Lot), Gareth (Due to Lot), Gawain (Don't know who the father is but it's mentioned she raised him in Orkney) AND she's Lancelot's FOSTER mom due to the aspect as Viviane... plus apparently Viviane and Merlin were lovers? I get soo confused with the lore here due to Fate handeling her as a greater fairy and divided part of the planet's soul, so of course MULTIPLE conflicting legends are ALL true
When it comes to Arthurian mythos its about as complicated and messy as just about every mythos out there, so i wouldn't get too caught up on what a characters characterization is in certain variations of the story differing from other tellings. For example Mordred as a character wasn't even a villain or related to Arthur (hell in the very first instance of Arthur and Mordred as characters they died in the same battle but no mention is made of whether they fought alongside eachother or against eachother or any of that) and over the centuries Mordred variously is Arthurs child (like we have in this instance), nephew, archenemy and traitor, etc.