Stadium will never always be full in Miami. People show up for events, not games.
2001 squad was back on top and #1 in the land—you still had 30,000-something at the beloved Orange Bowl for Temple that year.
Fans will show up for FSU, a decent out of conference foe, or a good ACC team theoretically in the hunt—No. 13 Virginia Tech (7-1) back in 2017, at night and a week before No. 3 Notre Dame also headed south to play unbeaten Miami—but no one was showing up for that dog of a game against the 5-5 Hokies, even if Miami was 8-2, as it wasn't an "event".
Win and enough fans will be on board giving a ****, with more games turning into "events"—but Miami will never see the kind of support other schools see. Need to just get over that and accept it.