I wish I could opt out of this change. I've been asking Google to remember my location for more than a decade, and it's an amazing record of where we've been, when. I don't care that the government or Google can see it, it's still super useful. I'd pay to keep it in the cloud.
Hopefully there's some way you'll be able to get it out of your device. Obviously not as ideal as a simple checkbox in Google, but to me making you have to set up some sort of export/sync yourself is an acceptable tradeoff for what the rest of us get from this change. Of course, it's easy for me to say that, because I don't use the feature basically at all ;)
It's not that I just want to export what I have right now (which can already be done), but that the active tracking was a valuable service to me. I hope somebody offers an alternative.