For the most part big companies won't be paying via stripe anyway, but even if they did want to pay on credit card they certainly won't want to pay with cryptocurrency, even if it is a stable coin.
I've accepted hundreds of thousands of USDC in revenue in other ventures.
I've also wired and accepted wires for similar amounts. Each time I get a call from the bank and it takes a half a day at the very least. Sometimes it takes weeks to unfreeze my money in various payment processors.
On chain, it's faster. It's cheaper.
What's your point?