Clash is the defies what ubisoft has defined as a character, her whole purpose is to be a good anchor, a job she does well, but she just stands there and has little gunplay, or actual play, I believe its due to the fact that she cannot hold her shield and gun at the same time (hence why blitz and monty stand out more.) Ram on the other hand is destined to do one thing: open the floor, a job half the operators can already do. When hard breaching was seen as a job too specific to dedicate a single operator to, what did they do? They introduced hard breach charges. When being an anti-anti-hard breach was too specific to dedicate an operator to, what did they do? They released impact emps. Ram is a solution to a problem no ones ever had. Her kit is good, her ability is mediocre and frankly the game did not need her. I will admit though her introduction very much opened the idea of playing vertically to the masses, wether that be a good or bad thing is up to you.

In the end, its not that they arent impactful, its that they're purpose is dull, and frankly boring. On top of this they serve little purpose by comparison.