Let me try to argue for the opposite: keep as many words as you can. I have found the strategy of keeping words superior when writing exposition on a dense topic.
This realllllllllly depends on your goal. If it’s persuasion (e.g. a recommendation, a proposal, a bid, an argument), then it would be a good idea to remember that brevity implies confidence, and confidence is persuasive. Also, the more incidental points you make, the more likely it is your audience will get hung up on one of those points instead of what you’re actually talking about.
This realllllllllly depends on your goal. If it’s persuasion (e.g. a recommendation, a proposal, a bid, an argument), then it would be a good idea to remember that brevity implies confidence, and confidence is persuasive. Also, the more incidental points you make, the more likely it is your audience will get hung up on one of those points instead of what you’re actually talking about.