There is a thread with the same concern:
https://bitcointalk.org/index.php?topic=5469526.0But of course, the answer would still be no. Just what I have said from the similar thread above.
Probably, that gambler you have seen believe to some kind "
Illusion of Control"
[1] fallacy where they can influence or control the outcome of the game, in his case not changing the seed, even when it's based on luck and randomization of numbers.
[1]
https://en.wikipedia.org/wiki/Illusion_of_controlAnd as far as I know, a streak of wins or loses is a good indicator of the randomness of whatever the game is!!