This is almost certainly not true. The Miller situation has been played out for decades and it was no revelation to BU. Maybe he gave it as example to someone but I certainly doubt his approach altered because of itIt was also stated flat out the Miller situation played a big role in the staff cooling on Fears.
Promises or assurances to players might look different at different times depending on the strength of the program.
The corollary to "I want to start." is "Stop recruiting guys like Boswell ahead of me in the rankings.". I'm totally fine saying no to that.
Like Brunson and Evans we're likely never to really know.