First, it is talking about the directory itself, not the files inside it so don’t use -R.
Next it is telling you that your filesystem is more restrictive than the package default. If you want to change that or not is entirely up to you. If you do want to change it, you should probably use o+rx
I got this warning too, so if I want I can just safely ignore it as an option? I don’t really have a preference either way, unless it’s advisable to do a certain appropriate action.