You're making two assumptions:

1. The people saying Elon doesn't have a heavy hand in his companies and the people saying he is running Twitter with a heavy hand are largely the same people.

2. It's impossible that Elon indeed both does have a heavy hand in Twitter and does not have a heavy hand in most/all of his other companies.

These assumptions are the same flavor of cognitive bias to the one you're accusing others of: That born of a desire to paint a group of perceived opponents in a poor light.