A couple of years ago Lucia Bosetti, meijners and Van Heck were enough to win the tittle. Nowadays Italian teams are way better.
Well, a few years ago (2012-14) Lucia Bosetti was one of the best OH in the world. She had great jumping skills which made her a scoring machine, besides being an excellent passer/defensive player. Then she had that knee injury in 2014 and she became basically a "second libero".
Meijners too was at her peak during those years, I remember she was almost unstoppable in attack.
As for Van Hecke, I agree she has never been a spectacular OPP but she has always done her good job wherever she played.
Overall I think nowadays only Conegliano is better than that Piacenza team. The rest of the league is kinda similar to that period.