You can do that, correct. I guess I would ask why though? It is kinda a myth that WC, at least my WC, lacks a "long game". It has a long game, but it's more linear than "sweeping". My personal take is that "long fist" vs "short fist" has more to do with the stances. As an example how often do you see a Boxer or MMAer have a punch ending like this
It's not so much the punch but the stance because here we see...
So long as both hands are engaging the target (this is actually via Inosanto's some of the training Silva has undertaken) the principles are maintained. So really it's about what the entire body is doing.
As such WC striking can be pretty effective, it's weakness (if you actually pressure test properly which we both agree on) is that if your striking game fails it lacks in takedown defense and ground game. That is a gap that NEEDS to be filled
Also note I am talking about my purpose. I don't wear gloves at work and am not looking to "KO" someone. I am looking to defend myself and bridge from that defense to taking someone into custody. So what serves my purpose will obviously be different than the purpose of someone else when it comes to combining arts in practice.