Our playstyles must differ then. I generally don't spam my wings even now, so the charges change won't make much difference to me in general. But because my number of wing uses isn't changing, it will cost me double the SP to act as I normally do. It's either that or use wings less, which will be less fun/convenient.
Though for you, if the change is making you use half as many wings, that right there is a change you are going to feel to some extent at least. And even though you will be winging half as much, you will still spend the same total SP, so you're paying the same for half as much. In a way, you're getting hit twice as hard as I am.
Of course you might not mind that nearly as much as me, but to each their own. To me, is it most definitely not a non-issue.