Am I wrong that the mortgage rate lock-in effect is basically played out as a story?

The gap that made this a real story was 2.75% vs 7%, that's genuine money to walk away from every month. But the composition has shifted a lot. The share of mortgage holders under 3% is now roughly even with the share over 6%, and some trackers say by early this year more homeowners are above 6% than below 3%. One brokerage's own numbers had about a third of this spring's listings coming from sellers giving up sub 5% rates. At some point staying put just isn't the dramatic financial decision it was in 2022. Feels like a lot of people are still repeating the lock-in narrative out of habit rather than looking at where the distribution actually sits now. What am I missing, is there a reason this drags on longer than the numbers suggest?