Maybe SWAT can have slightly different rules regarding RoE, but those should be the exception.
As for active shooter situations, guidelines now call for the first responding officer to immediately move in and attempt to stop the shooter by any means necessary. They aren't supposed to wait for a SWAT team to respond. It's ridiculous to propose separate use of force rules for them.
It doesn't feel like you're trying to make a charitable interpretation of what everyone is asking for. You're welcome to suggest improvements to the language, but writing off the idea because of a "well actually" attitude smells of ideology.
It would be like using a single child’s death caused by a vaccine as the reason to ban all vaccines.
Simply put, such a policy to save far more lives that it would cost, which must count for something. Or perhaps we should also stop using seatbelts and airbags.
This doesn't mean cops should be making a habit of having high speed shootouts on freeway; nobody wants that. It means the rules need to allow reasonable leeway for people to do what they think is appropriate in the unique situations they encounter. Blanket bans enacted by people reasoning about generalized scenarios are not a good idea. Those sort of absolute rules are too simplistic to be good for anything other than pandering to crowds.