My inherent pedantry drives me to say "this sounds like compression, not gating". Do lots of people use "gating" to mean "automated volume control"? In 30ish years of hobbyist music production I have only encountered it to mean "automated in/out control". It's "compression" that automates dynamics.
Thinking out load a bit here:
- maybe the existence of West-coast style "low pass gates" proves me wrong...
- gates sometimes have release controls, which would make them "automated volume control", but I still contend that aiming for zero gain when the gate closes makes them in/out controls not "dynamics" controls).