Maybe there's a misunderstanding but you can still see a limited number of keywords people used to find your site in Aquisition > Keywords > Organic
Much of the Google data will appear as "not provided" and you will have to install and look in your Webmaster Tools accounts to see a more complete list.
If anyone's interested in getting some extra data from their not provided there's a filter here that converts you NP traffic and appends the landing page eg "np-your-landing-page"
Obviously if you have a busy site it'll generate tons of "keywords" so rather create a new profile and apply the filter to it;
https://blog.kissmetrics.com/unlock-...-not-provided/
Cheers,
Paz.