The missing blue handled brushes may have been held up in the very extended longshoremen's strike that shut down every single port on the West Coast.
If the brushes were coming from China, as is likely, they could still be in some container on a ship.
Now that the strike is over, optimistically all the containers will get unloaded in 6 weeks, but it's more likely to take 3 months to get every ship that's been waiting into port and unloaded.
So, yeah, blue handled brushes may well show up in the CCOs this summer.
BTW, dodos were real, humans just murdered them all to extinction. Unicorns, on the other hand...