Apparently what is being discussed now is implementing the option for two way conversions. Currently the blockchain is capable of converting SBD to Steem (note this is different than the internal currency market). The option is being discussed to allow users to convert Steem to SBD. If this happens the de facto unlimited printing possibility would push SBD back to the intended $1 as anytime it was overvalued people would be incentivized to convert & sell.
Also, any calls for Steem and SBD to rise simultaneously are highly suspect. Steem price increases directly create increased inflation of SBD even under the current system.