The arguments advanced by both Energous and Ossia are typical of those with perhaps better technology but poorer understanding of the market. That Apple went with Qi suggests that they lost patience with alternatives. Qi's out there in millions, and possibly soon billions, of devices and is good enough™ as Andrew was quick to point out when it was included in Nokia phones.
It's going to be nigh on impossible replacing the devices and the infrastructure. All companies can hope for is having their technology bought an rolled into future iterations of Qi.