I would be ok with that if your shorter time is about a week. The more options for the user the better. Everybody can decide for themselves.
There is no point of buying steem and holding as liquid as it is a toxic asset and diluted by inflation. Only reason to buy Steem would be to participate in the economy which will force you to lock it up.
Nothing wrong to compare steem with bitcoin as both compete to be preferred method of digital payment, transfer of value, and decentralized financial instrument.
However, I wasn’t comparing. Most people to buy steem will need to buy bitcoin first, then buy steem. Once a person has bitcoin, why should one buy steem instead of hodling bitcoin? That is the question that needs to be answered to attract any responsible investors.
I still don’t understand the objection against lower power down time. There is no evidence that 3 month lock up time benefited Steem.