Still possible to curl, just looks like it is a bit more obnoxious now and requires parameters like your browserAgent and cookie to be set. Look in your network tab for requests to an endpoint like this[1] with a lot of query parameters after.
Any HTTP request you can make with a browser can in principle be made with curl. The issue is that seeing content now requires you to jump through lots of hoops, whereas it was previously openly accessible by default.
That's true. I agree it is a worse change and obnoxious for twitter to do (unless there is some easy way I/we just aren't aware of that lets you easily get the tweets as before).
