New Methodism in America

In “Americanization of Methodism", I noticed that American Methodism was becoming increasingly institutionalized and structured. For instance, forming an educational system, publishing and distributing hymnbooks, memoirs, or catechisms, holding conferences regularly, and creating the episcopacy. In other words, unlike John Wesley’s intention, American Methodists seem to form Methodism as a new structured denomination. 

I wonder why American methodists formed more institutionalized and structured Methodism in America, which put some distance between Wesley and American methodists, even though Wesley opposed American independence. Were the changes inevitable results?