FWIW
*Currently* smallsats are generally not rad-hard, have minuscule power budgets, low gain antenna's and abysmal success rates. Thus are generally f&*k all practical use in geostationary orbit (premium real estate). It will change, but not yet.
There's a hell of a lot more going on with persistent platforms in the stratosphere then Airbus's effort, and behind a lot of unexpected new players doors too. Big changes are coming.