might help, might not... as long as you don't slow it down it won't be any worse. With only a handful of plants it's not much work but can be tedious with a large room.
as far as i know i haven't seen anyone compare a large enough sample of trained autos to a control group of untrained autos -- and then with various strains of different traits... might be more helpful with the lanky ones that form mostly 1 cola vs those that branch out more, for example.. pretty hard to guesstimate such things given all the variables in play and the genetic diversity of autoflowers themselves... but more volatile and can't take clones to make a homogenous sample for better comparison, ceteris paribus.