I was researching this for a Moncada article that I'm releasing tomorrow but it is also worth mentioning that of those 7 hits last year, 5 were singles and 2 were doubles. As you noted, he has a double and a home run after 0-2 counts this year.
So in just 5 games, he has already matched his 2018 season extra base hit total after 0-2 counts. That's not just luck, IMO.