How they made her in Suramar is somewhat out of character and like the the dude writes in the post below yours, they are very careful by pointing out that she is someone that rather see other people die for their cause instead herself losing too many of her own troops. It goes over and over again while Liadrin is this saint that would do anything for the Nightborne.
Tyrande in WC3 is also someone who has no problem sacrificing herself for others like Kael'thas and there is lore of her being helped and herself helping by what we know as Blood Elves today. She was a well written character in lore and Warcraft 3 but they have destroyed both her and Malfurion in WoW, two of the strongest Warcraft-heroes there is.
Seeing as the Tree is burning down I really hope for them to give the Night Elves some love, for them to find some strength again, it's been a while.
Her old colors are being strong, sceptical but fair, the one we see in Suramar is only sceptical.