I would not be terribly concerned with the look of these. However i really push my light levels quiet bit. As long as the new growths are similar in size and are not getting smaller or more narrow, i dont worry much about the light under leds. Of course i don't want to burn anything.
How are...
I grow this species in a mixture of sphag, bark, and perlite. I would classify the way I grow it as semi-terrestrial at best. @CarlG comment is most likely spot on and not bollocks.