The options for producing directly to an online destination have always a limited subset of those available when producing to your hard drive. No option for 60p is just one area where you're seeing those limits.
You also can't set a YouTube video to be unlisted, or add it to a playlist, or any of the many other things you can do if you've produced the video locally and simply used the Create icon on any YT webage to manually upload it.
In addition, I can't tell you how many times I've started uploading a video manually only to find that I'd made a mistake when viewing my local copy. With direct-to-YT, you have to wait until the whole thing is finished producing + uploading before you can see if it's actually something you want on your channel. These are the main reasons I've always produced locally.
As for the limited options, my guess is that the developers wanted producing+uploading to be a simple feature in contrast to normal producing where you have much more control, and basically you'll have to choose what's more important.
You can always use Rate Us & Provide Suggestions from PD's File menu to request more options like 4K 60p when producing to an online destination.