The trees really aided the view down Main Street and it’s a shame they’ll never return.
I made this a while back (5 years ago apparently...) to see how the castle would look with Disneyland sized trees and it works:
Paris looks fine without trees because of how the castle is framed, as does Tokyo. I’d also argue Disneyland would look fine without trees (not that I’d want them taken down), but the way Cinderella Castle was designed in conjunction with Main Street requires them in my eyes. They helped reveal the castle beautifully, and without them the park has lost a lot of the magic it once had. It also doesn’t help there’s a tacky stage in front of the castle either...