I have no strong opinions on the symbols but it's a funny coincidence that they chose the oak leaf, while the Apaches have been fighting for 20 years protecting their sacred grove of ancient oaks in Arizona called Oak Flat from being destroyed for a copper mine: www.apache-stronghold.com
It's quite a story - first congress voted 8 years in a row against giving the land (which was protected by treaties and subsequent designations as a protected area) to the mining company, then the land transfer was snuck in at the last minute on the big defense spending bill, and then has been in court since. Really impressive that they've held it off for this long. https://www.apache-stronghold.com/legislative-context