Well, all throughout WCI, it was "wait till we get to Zoros arc, it's going to be 1000 times better than this. " meaning, Wano.
Wano happened, and halfway through it all of a sudden became "Wano was never meant to be Zoros arc."
So you are right, when people thought Wano was going to be all about Zoro, and it was going to be the greatest arc ever, because it's the arc Oda wanted to draw forever, it was Zoros arc. When that didn't happen, the tune changed with the quickness.
Them damn agendas.....