I think the article makes it clear that SpaceX does not care much about security here. It's more that they don't have (engineering) bandwidth to actually put something together and sell/support it.

Focus is a very real thing in business, starting an additional product that has a minimal overhead can still end up ~2-3 years later as a massive cash drain with a complex hierarchy of workers with a very small ARR. That's why you take on customers before building it.