At that time, counterparty was doing very well and the dex was very active. The initial direction made sense for the vision at the time, but that gaming community has shifted to using tools like metamask and ethereum tokens.
Dex is still active with money others tokens doing well. Tools you mentioned in ethereum are made just for security and easy-access but really, we are not sure if the game iis one of the best even in crypto market.
There will be a place to enter an ethereum address and then a place to send the counterparty tokens to, after that, the erc20 token will be sent to the ethereum address.
Is it really that easy !!!?