I dont think its wrong if it works for you. I have also watched alot of these detailing guys on youtube, some are really over the top. Maybe out west in dry climates its cool, but all I know is in Michigan, If i spent that amount of time detailing my car or truck, it would be ruined in a day or two by rain or snow. Lots of wasted effort. I never understood the concept of foaming the entire vehicle down first, seems to me by the time I got around the entire thing, the suds would be dried up. And busting out a powerwasher for most washes is overkill when im just removing some bugs and road dust.
Ive been detailing all my daily cars and my classics for 35 years and always get compliments doing it the old way. But, I have implemented some things that make sense and improve my efficiency for the wash and save me time. I use a bucket on casters and a brush with an extended handle. I have a grit guard in the bucket bottom. Switched all my car towels to microfiber. Use quality car soaps. Blow out gaps and cracks with my cordless leaf blower. I claybar in the spring and it helps me maintain all summer. Recently been trying alot of the highly hydrophobic waxes/coatings, Mothers CMX is my new favorite.