Debit card is just the latest attempt of "something" in a list of things to make it look like they are doing something to make the price go up, but it won't actually work.
To increase the price they need to reduce the supply or increase the demand. Can't reduce the supply, the only way anyone has made any money on this shit show is "create coins out of thin air, sell to idiots," so lets increase the demand.
If there is something to do with paycoins (debit card, coinstand) whatever, people will want/need to buy paycoins to do the thing, and make the price go up. That's as far as they go, so they spend lots of time and energy trying to come up with "things" (coinstand, honors program, debit cards, other assorted nonsense) to give people a reason to buy the coin. The problem with all of this is that there are so many people stuck with so many coins that the price went up. People that bought coins from anywhere from 20 cents to 20 dollars aren't going to buy more to use coinstand or a debit card or whatever. They will just use coins they already have, and then the person at the other end will have to sell their coins to pay their bills, so the price will just go further down until everyone gives up.
You are overlooking the other half of merchant acceptance of a coin. The important part. Say people buy the coin to use, which in itself is far fetched (why use a Credit Card to buy BTC to then buy Paycoins when you could just use the CC to buy what you want??), but lets say people do this and then spend them. What do the merchants do with them? They DUMP them. Immediately, and at whatever the current high buy bid is. This creates continuous downward pressure on a coin market. Once this is in place, people placing Buy Bids know this and keep reducing their Buy Bids, creating a race to the bottom of the price scale. This is one of the things that Bitcoin is struggling with right now. At some point the market is robust enough to absorb this, but the Paycoin market is nowhere near being able to support even minor merchant acceptance without tanking the price.