No. The Sniffer10G software does not support teaming (aka, bonding, link aggregation, IEEE 802.3ad).
Sniffer10G packet capture is a passive operation whereas link aggregation and failover usually requires some amount of link layer traffic.
If you would like to capture traffic from both snf0 and snf1 irrespective of what the link state is, you can do that with the port link aggregation feature in Sniffer10G. For more details, please read: Can Sniffer10G v2 aggregate or merge ports?, as well as the Sniffer10G API documentation included in the software distribution.