It's a little bit of a big deal for a couple of reasons:
1) When I turn off all of the CPU assistance, that's me saying that I uh, don't want the CPU's assistance in recruiting. So why are they still signing guys that I didn't choose to go after?
2) In OD's like the ones I am in, we have recruiting restrictions. For example, some are seniors +3. When the CPU throws an extra half dozen guys in that you didn't want it skews your numbers and makes it more difficult to track everyone's true recruiting numbers.
3) Other OD's are just to recruit up to 70 players, which not only makes it easy to track but also means you can skip the cut players portion....except when the CPU adds random guys that all becomes pointless.
Those may not seem like huge deals but they are significant unnecessary inconveniences that we have to deal with every year for no reason.