Why do think they don't? They've had that for a lot of years now and any/every new phone (for years) is capable of receiving WEA's.
Here's a link to Verizon's WEA page, if you expand LG you will not see the G6 but all the previous G's are there, the page hasn't been updated I'd guess.
But yeah, Verizon has them and they do work (and scare the crap out of you when the go off).
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