I think it should stay, but be reduced in frequency
BF4 went overboard on the spotting mechanics. Super wide cone upon release, bases auto 2d spot nearby enemies, looking at an enemy automatically 2d spotted them for your team regardless of distance, UAVs, side mount attachment that spots for you and of course thermal sights that highlight enemies
I think all classes should be able to “2D Spot” but only scout(I am gussing this is the equivalent of recon) should be able to mark enemies with a 3D triangle and they should not be visible through obscuring objects
This is assuming of course, 3D spotting is even a thing in this game, HUD overflow the way its been in BF3/4 might actually serve to hurt the art direction of this game as technology is not as advanced