I'd bet the TV ratings were double what they normally are for televised PGA events, too.
As they usually are when Tiger contends. At his best, Tiger was as good at his sport as any athlete has ever been at their sport, regardless of anyone's personal opinion of him. At his best, he played golf better and more consistently than anyone has ever played it, or as the Golden Bear himself said "He plays a game with which I am not familiar".
If he can come back at 80% of what he was, he'll get to 19 majors eventually. At 90%, within 4 years.
And just for fun, when discussing how realistic WGT is, keep this in mind: On the par 5 #6, Tiger Woods hit a 267 yard 3 iron. I do not believe my TB 2.0 or the R11 iron's 3 iron will go 267. Tiger Woods is less realistic than WGT.