No. Leylines are a big part of why BLM has such a high skill ceiling, and part of the reason why I personally find BLM's gameplay loop so engaging.
If you place Leylines on the wrong position, you get punished hard. If you know the fights, then you'll get rewarded. This contributes to the gap between good BLMs and average BLMs.
It also has enough mobility in its state as the radius of the effect is high, that you can just dance along the edges of the LL.
LL in general changes how BLM approaches fight as well, producing more replayability out of the fights if you're approaching it from a BLM perspective.


Leave BLM alone, there's little depth in the job design of the game as it is. Not everything needs to be easier.