The bigger issue I see is that powers should not be designed for single skills, since you only give each class 3 powers. Similarly, class sets should never be designed around a single skill or a pair of skills.
The WD powers are a good example of a better power design. Every WD build likes horrify, so it can use the horrify power, which can seem boring, but is still fairly strong and great for team support too. Every WD build can make use of the locust swarm power except LOD fetish and Zuni fetish builds, but they can still make use of the horrify power. The Garg + dog power is obviously better for helltooth builds, but other WD pet builds can still get some use from it.
In contrast, the monk wave of light taco bell power is terrible because it is specific to one skill. With some brainstorming I’m sure they could figure out some slightly different versions that could be used for all spirit spenders, including lashing tail kick and tempest rush. So much wasted potential for replayability and player engagement beyond the early season.