booties are really annoying to play against as romer or scout but imo the only seriously overpowered thing about them is their synergy with quickiebomb
1) you dont need pipes with quickiebomb because theyre so ridiculously easy in close range 1v1s that no scout of equivalent skill can get near you
2) booties improve your survivability because you can dodge so much more shit and +25 hp
3) the lack of traps is minimised by the fact that traps are kind iffy with booties anyway because you can't spam anything if you have a trap up
4) the lack of pipe spam/extra stickies is completely outweighed by the extra dps at long range (because stickies charge up WAY faster and ramp up damage with charge, meaning you can be more accurate as well as putting out more damage per sticky, and more stickies per second)
5) when pushing badlands last you can literally negate the termo spot completely killing their stickies before they can det them (!!!) and basically have a huge advantage when playing point, you can also use this ability to protect your medic or whatever from a demo bomb or shield your scouts capping granary second and a BUNCH of stupid shit