Not a huge deal, but a couple of things that still make a credit card superior:
(1) Your holds for things like hotel rooms or gas pump charges don't restrict your access to money, they just go against your credit limit (not sure if this has changed)
(2) You're protected provided the bank agrees with your argument on fraud. As a matter of legal rights, you end up in the same place. But as a practical matter, them having your money makes a big difference. If there is a colorable disagreement, whoever has the money ultimately wins b/c they can't economically collect on a small cost and you can't economically sue them for a refund.
For an off the wall example, say you pay for a downpayment on a product (say furniture since there was just the big abrupt bankruptcy) but before your product is shipped, they declare bankruptcy. You are now an unsecured creditor of the bankrupt company. If you paid by debit card and the bank has transmitted funds, your bank likely won't make you whole. There's no way for them to get the payment back. They've got your money. You're out of luck. Even if they haven't paid, they're still legally obligated to and may make the payment knowing that it will prevent you from paying them back.
If you paid with a credit card, legally nothing has changed, but you have your money. If they haven't paid, they're probably not going to because even if it becomes a legal hassle from them, they know they may not get the money from you so they will make the trustee fight for it. Even if they do pay, you still can just continue claiming it's fraudulent and that you didn't get the service and while you might legally be wrong, they may not want the hassle of collecting. If it's a $15,000 charge, they're probably going to come after you, but if it's a $2,000 charge, they will very likely make a business decision and write it off. Worst case scenario they turn it over to a debt collector and you take a hit on your credit score but don't lose the $2k.