500K is a lot of spins in numerical terms, but I'm starting to wonder how many
millions of spins it actually takes to start to see a true T-RTP and/or the 'big outcomes' on a slot as an individual player, especially on something like IR with the massive hit that five wilds in Wild Desire would represent. (Which has to be accounted for in the overall RTP remember.)
I don't know if you're aware of my ongoing experiment with Starburst plastic, but I'm currently up to 200K spins and I haven't hit more than 270x stake, on an ultra-low variance slot that has a jackpot of just 500x stake:
https://www.casinomeister.com/forums/threads/new-slot-starburst.47929/
When I started my Starburst experiment I sort of jokingly commented in the video that I'd stick at it even if it took 100,000 spins to get the full screen of BARS (which is 500x stake), not expecting it to take that many spins. At 100,000 spins I hadn't seen them, I then got to 200,000 spins and I hadn't seen them, now I'm working through the next batch to 300,000 spins and quite frankly I'm starting to wonder if it'll take 500,000 or a even a million, to get there.
(I am however, absolutely determined to see them in the end.)
The point here is that I don't think 500K spins is enough to 'expect' to have seen a really big outcome on any slot, especially not a very high variance slot like IR.
I think you're getting into the realms of lottery odds to see five wilds in Wild Desire, literally millions and millions to one. When you have a community such as exists here at CM, you have the 'player volume' and thus the 'spin volume' to generate the reports of hitting five wilds, and seeing those screenshots.
However, your chances of hitting five wilds as an individual, even over 500K spins? Very small IMO.