Who I have the same questioned this topic

So with your logic, I should blame Best Buy for why my Nexus 7 2013 wifi tablet got the March security updates 15 days after it was originally released? "It should have gotten it on the first day."

Verizon does not have the update. LG does until it is ready to issued. Then and only then will Verizon Wireless announce/update their software updates pages to let their customers know there is an update ready to distributed. Oh let's see Advanced Devices Software Updates | Verizon Wireless, LG last finished an update and was distributed starting on 1/06/2016 which likely means it didn't have the January or February security updates. I wouldn't be surprised if it doesn't have the December update either.