2 springs in and out in about 30 mins on the driveway just need to jack the vehicle up place the rear on axle stands place the jack underneath the bottom arm and take the weight of the spring remove the lower bolt on the shock absorber and slowly lower the jack pull the arm down and pull the spring out. to fit just pull down place the spring in line it up jack the bottom arm until the strut bolt lines up tighten it by hand the first thread or two to prevent cross threading then tighten it fully, lower the jack check the bolt is still tight and repeat on the other side.
I never thought it would be that easy but you're right, it is!
This vid covers the method you described above: https://www.youtube.com/watch?v=emYzTyjM4SM