Yes it has been changed you now need to max out on all refroms, the USA avoids it no problem. However if have good reforms and a long run of Liberal governments it tends not to be a problem. As the UK the Liberal revolution gave me problems in Ireland, but not on the mainland. As Prussia it nearly murdered me, especailly when the bloody Poles decided now was a good time to have a revolution too. On the other hand, Russia can avoid the revolution no problem, if your people can't read they don't get any strange ideas.