What is your honest opinion about sleeve rolling? Are there more serious topics that need to be adressed?

Of course there are more serious topics. However this is a quick, cheap, and efficient way to boost morale for those that care about sleeve rolling.

It was a morale issue, nothing more, there was no performance gain, no tactical advantage, it did not make the army stronger, better, more resilient.
It was an attempt to be"The Soldiers" CSM and in hindsight it seems to have worked, so , I'd say it was a good call.
I originally took it as an action to quiet the minions complaining... But in retrospect I think he did it to SUPPORT the masses asking for a change.

While it does nothing good for the service in tangible reality. It was good for the service in that they asked, he listened, and it was changed.
Cost is minor in the scheme of service costs, it is a change easily implemented with no issues of creating a hazard if done incorrectly in the transition period.

It will require a specification change on uniforms I think to be done correctly, but that can come as needed and those with large arms just have to suffer though it.
Only the CSM knows for sure.. but so long as it was done to support the mass's asking for it, and not the minions complaining they could not. I see little to no down side.

I hate the rolled sleeves