Unpopular opinion(?) The way Strike collects fees is less transparent than just collecting a fee

I've started using Strike to do my DCA. It is among the cheapest ways to stack sats, but instead of charging a fee, they just sell you the BTC at a higher market price. You'll see $45,158.20/btc and when you go to buy it's at $45,235.77 (consistently, it's not the volatility). So they are essentially charging a fee, but act like they aren't. Obviously they have to make money, and the ~.3% upcharge is still less than Coinbase Pro, but I think it's a tiny bit gimmicky. Please correct me if I'm wrong.