Using gate as a verb is perfectly fine and I see it all the time where I grew up in America. The problem with the sentence is deeper than word choice. It is like politician language in that it technically says what Claude is attempting to say without ever nailing down the precise context, so that it can be interpreted a million different ways and all would be correct, if you read it right. Which means it says nothing.
I am convinced this is a result of RLVR and synthetic data. LLMs optimize not for human readers, but for passing the LLM evaluators in their training runs, and end up developing sophistry.