“The idea” is that (the only) megaconstellation sat internet provider is investing in and partnering with an AI company. On its face that seems to make sense to me. If it does not make sense, why not? The reasons you have given are irrelevant and also false.

The “taxpayer” (govt) pays SX a very low rate for launches, and gets an excellent product in return. In what way is the “taxpayer” being swindled?