I blame GSP's opponents for him playing it "safe". I agree with what someone posted earlier or in another thread about how his opponents have already lost mentally before the fight.
We're only likely to see a GSP finish if one of his opponents actually pushes the action and put him on the back foot. Otherwise GSP is just going to do his thing and outpoint them.
P.S Georges is the most dominant champion in UFC history + P4P number 1 IMO