That doesn't keep BYU from asking. I'd rather make decisions on what we know than on a bunch of "what if's".
If ESPN says they won't make a deal with BYU that includes bowl game access - and assuming BYU isn't able to contract with any bowls - then sure, it might be time to talk about joining the MWC or AAC or whatever.
But I wouldn't go running to join a conference because ESPN "might" not include bowl game access in any future contracts with BYU. That would be silly.