They can get Shrecks back, once UKF can get handheld AT that hits moving or stationary vehicles without an 'attack-ground' command.
Translation: I want to do even less work to earn my Brit victories. I want to be able to play this game with a gamepad.
Also, PIATs can definitely hit stationary targets. Plus they have longer range than panzerschreks same damage, more deflection, less penetration, faster reload. Then factor in you can have two on one engineer or other squad and it's pretty damn good.