I don't know, the way he talks is a little confusing. On another site it quotes him saying,

"It is no different than [the question of] should anybody ever have been able to tell the phone company to get information, should anybody be able to get at bank records. Let’s say the bank had tied a ribbon round the disk drive and said ‘don’t make me cut this ribbon because you’ll make me cut it many times’," Gates stressed. [1]

I think that means Gates feels this is only a single case situation, and he does not believe Cook's assertion that Comey is trying to set a precedent.

Unfortunately the full interview is behind the Financial Times paywall.

[1] http://sputniknews.com/us/20160223/1035197491/bill-gates-sup...