Here, opinion only and also reciting what seems correct concerning wood scarcity without verification...

My understanding that quality Walnut is a commodity about gone in America. European sources slim and expensive. Winchester for instance now, hyping "Maple". I'm with their `2019 Catalog' and personal 'most gracious opine' as "different". That as "old foggie" status disclosure likely coloring remarks. Super Grades now, with such figured maple and otherwise 'relatively' plain stocks. Ultimately though, a fancy stock is a 'pretty face' in my gun world. I can enjoy and appreciate, but I can also be more pleased with great design. Ergonomics, trumping looks any day... (Inanimate objects only! smile ) The large caliber heavy recoiling rifles, even more ergonomic essential. The "beautiful painful to shoot rifle', for me a non-starter!
Just my take!
Best & Stay Safe!
John