You can use a standard micro USB cable to charge your phone, you don't have to use the USB 3.0 cable that came with it. I do agree that the full USB 3.0 port is a little finicky but the bright side is that you can buy cables for $1 that will actually last. In order to get lightning cables that would last for longer than a month, you had to spend at least $20 to get Apple's.
The new micro USB standard should be coming out soon and it allows for a universal alignment like the lightning port. You can plug it in every which way and it won't matter. I do think Samsung has realized the error in going with full on USB 3.0 with the S5. They stuck with standard micro USB with the Note 4 and Alpha smartphones. The S6 will likely switch back to micro USB or use the new standard.