I agree targeting is a problem for Queen, but it doesn't stop there. Stuff like the terrain itself morphing like Uplifts in Titan savage mess up with Queen hardcore. When you get punted upwards, queen disappears and only reappears when you get back on the ground. Queen also can completely glitch when being summoned on the platform going up while you stay down (since she gets summoned just next to you). Queen can also glitch when trying to go down a platform.

All of this can result in hits being totally skipped or missed, and sometimes she doesn't even pile bunker. This is an annoyance and forces good players to actually summon the pet only outside of those mechanics.