Impossible to know since grace isn't visible. How many Trad heretics have you known to possess supernatural faith, hope and charity, and hence to be in the state of grace. And if your answer is anything other than "zero," explain how you know they were in the state of grace.
I don't know any trad heretics. So your question doesn't apply to me.
However, I assume that most traditional Catholics go to confession on a regular basis, and are therefore in a state of grace.
Non-catholics, of course, cannot go to confession. They can confess their sins directly to God, and in that sense, it's possible that some can be in a state of grace. Similar to the Novus Ordo Folks - who are rarely reminded about the neccessity of going to confession (which you may call reconciliation).