No, because SVT-40 provides real benefits, cjnscripts become stronger in attack and in defense and in motion. 7 people 50 ammunition from 10-15 minutes are not even close to the usefulness of SVT-40. With your logic, what is useful should be blocked only in the commanders, let's take MG-42 from the grenadiers and put them in the commanders, because MG-42 is a real improvement.
You seem to be confusing balance issues with diversity issues.
If LMG42 is moved to a commander the Ostheer faction will be completely UP and will only be playable with certain commanders.
The changes to Conscripts is there to increase diversity in builts and not to solve balance issues. The Soviet faction is doing quite well balance wise, since it has a number of other options besides conscripts.
This stock changes should be tested vs enemy units like grenadiers and not compared with the SVT which in untested doctrinal ability. The test so far has shown that conscripts trade very well vs grenadier.