This causes issues with the structuring of the game. See the above points about sliders not requiring any player action, and speed change readability. (Whether you use it or not, it's an offering the game makes for players to use if they wish.)
About not needing a player action, as I said hitting , releasing, and hitting again is not such a natural movement, so most players won't do it. About your example, I find that such sliders are not so common, and anyone who uses one likely wouldn't have tick rate 0.5 in the first place
About speed change readability, as I said if a speed change is used well it won't need a tick. Just because some people use ticks to read badly used speed changes, that doesn't mean that it should be forced on everything = =
I think that tick 0.5 supporters have a different understanding of how the game works. I would like to work out a solution that has balanced gameplay and satisfies everyone.
You can't just say that your way is better, because many people prefer the other way ><// If you and others want to satisfy everyone, removing an option is not such a good idea, because it leaves many people unsatisfied (though I know you didn't remove this yourself)
Regarding "balanced gameplay"
-I think that 99% of people won't notice any HP drain difference from 0.5 to 1 = = it will hardly matter because it's quite minor and most people would FC it anyway...
-I, and I'm sure others, think that making a map fit the song creates a more balanced experience than having a "constant rhythm" where it doesn't fit or having an out-of-place tick for 0.0001 extra HP which we won't even need. I recall one case where I had 3 new combos and someone told me to remove it because "it screwed up the hp drain", and I tested it myself and found it was the same whether I had new combos or not.
Ultimately, the wrong tick rate is just a minor annoyance. While it makes me sad to see maps reach ranking with a tick rate I find too low, I can still enjoy it if the map itself is good.
then why not add it? Leaving it out causes a lot of people to be unsatisfied just so some people get their way 100% of the time, and leaving it back in will allow it to be used in cases where it is useful and, as you just said yourself, is only a minor thing for the others = =
In other words, having it would satisfy a lot more people than not having it. I also think that almost everyone agrees that it is quite useful in some cases regardless of whether the person prefers it or not, which in itself should be a reason for it to stay...