Yes, they are superior to the mainline infatry having more durability and DPS, no cover restriction, free weapons upgrade/grenades.
They also allow UKF to rush to T3 and get tank out without having to invest anything in infatry tech yet have access to all of it (bolster/grenades/weapons).
This isnt esoteric functionality, this is just them being arguably overtuned, then. IF they remain in their current design space, they should be made initially weaker and brought down to CP0.
Alternatively: They should be redesigned to have a specific role rather than what is apparently "better than IS", and still then come at CP0.
The current Raid Section should be something the Assault Officer can spec into, if it is truly just a "better" infantry section.