Horses and slots are two completely different forms of gambling though aren't they Brian? You don't get an RTP% on a horse race but you get odds on various outcomes instead, and the punter puts their money on one of them, using 'form' to help them arrive at their decision and feel in control. You're not going to place a bet without knowing how much you'll win if it comes in - that would be stupid.
On slots you're betting on millions of different outcomes simultaneously, many of them losing ones, and the player hopes that a winning one will come in. Knowing the odds and hit rates of certain things isn't going to help them win or lose on a slot, as they're betting on all of them at the same time, every few seconds. Declaring the RTP% and volatility helps the player form an opinion of how long their money might last, and how bumpy the ride might be along the way to hitting a bonus or big win. The rest they can find out for themselves; that's part of the essence of slots, and gambling in general - there has to be an element of risk and unknown. If you remove this, then a large part of the thrill and excitement of gambling on slots is also taken away.
The profile and maths of a game might not have been to the player's liking in the end, but they've still played the game at 96% RTP or whatever during that time, and will have had just as much chance of winning or losing overall on another 96% game with a maths profile they like, so it's not like their being ripped off in any way. You can play a game, not like it for whatever reason, and still win on it.
As much as I admire JFTW for putting that game info on their website, it doesn't mean everyone should have to, and it certainly doesn't mean they should be required to state it in their help pages. If BTG
had to state the sort of info on Bonanza that JFTW are giving away, competitors would have a field day and you'd have games with Bonanza profiles popping up left, right and centre. I'm all for transparency, but asking for details beyond the RTP% and volatility to be supplied to players, however well-meaning, will damage the industry and put successful established game developers in a massively vuinerable position.