Sorry that I have no idea about the example you used but it seems it's near what I have stated, maybe you just missed reading that part.
Yes, we are going far from what the OP is trying to ask. It is about the transition.
I think it's easy to be a gambler after being a gamer because you have been through different types of risks.
As I said in my earlier posts, gambling is way easier to learn than games with lots of tutorials and instructions to learn.
I don't think we've gotten off topic, Op says:
If you're a gamer or someone is a gamer and would like to try to gamble in online casinos will it become an easy transition as all the elements of gambling are present when you're a gamer, or does a gamer have to start all over again, and have a different motivation and mindset?
Essentially the OP is asking about games that already have a gambling element, and it is clear that the transition from games that contain a gambling element to games that are completely gambling is very simple.
If we transfer the discussion to other games where the risk is choosing strategies/counter strategies to what the opponent is doing, then this is really a different type of risk and I do not think that it will lead the gamer to gambling.