LOL! The guy probably didn't literally mean it that way. Sometimes some people just say like that when they achieve something, and in your case, you achieved that rank while staying profitable, and that's why he referred to it as "too easy" even though he also knows that it's not easy for any person to achieve a total wager of that calibre.
Congratulations to you, by the way. It's not easy to achieve such high VIP levels in casinos, and the guy who is your VIP host or manager said to get soared towards Platinum 5 together because he knows you are pretty good at this, I'd say you are both good and lucky, because one can't be too good to stay profitable in gambling, and one can't be too lucky to survive all the time, but with a mixture of both, one can achieve what you've achieved.
Other gamblers shouldn't take this as motivation and try to do the same thing you did because things don't always work the same way for everyone, lol.