that's not entirely true. trying to play scout seriously on the OCR map rotation is near impossible. dustbowl, goldrush, and to some extent badwater is atrocious to scout on. maps where scouts do well are 5CP often people will rtv out after a couple rounds or just go scout themselves. the lack of collaboration and teamwork makes scout seems overly powerful on a map like badlands where you will get flanked every which way. this usually leads to 50% of both teams picking scout / engi or just plain rtv'ing off of it. without proper collaboration, your team will just get picked apart by a competent scout, this is made up for to some extent by the number of players and lack of maneuvering space.
in a straight up fight given enough space (let's say the size of the middle cap on yukon, perhaps a little larger) scouts should be even if not favored against a rl solly. the best place to be is in his face so he self damages himself and saves you the second shot (or third due to buff or random damage). even if he suicides to kill you, a lost solly is more damaging than a lost scout to the team (in most situations). the most difficult thing about playing scout is learning proper movement.