I was merely commenting (tongue in cheek) that if they didn't put in horses they would have put in some other form of mounted travel because lots of games are doing that now and they wanted to "keep up".
Daggerfall had horses. Also, for those who say horses are useless, they aren't useless for those of us who like to role-play and they aren't useless for those of us who wear heavy armor. My black horse is still much faster than I am in Oblivion(even when I have 100 heavy armor skill). Speed is not a skill that I care for or raise very much and with a black horse, one doesn't need to fast-travel if they don't want to. There is your alternative. When I don't want to fast-travel, I don't.
If something is really ruining your experience and you know it, then don't use it or place restrictions on it. Use fast-travel only to get from city to city. Make fast-travel only possible when on a mount. I rarely fast-travel. When I do, it is because I don't want to see the same terrain that I have seen before. I also only fast-travel while on a horse(unless in the Shivering Isles). I don't require a horse to justify a simple game mechanic(You skip your character's repettitive journey, why is that so hard to understand? The same thing is done in Morrowind. Why don't cliff racers attack me on a silt strider?), but for role-playing purposes, I don't make long journeys without a horse to decrease my travel time(Time is actually very precious to me in Oblivion and I don't waste it.) I have also read posts in the Oblivion section using a welkynd stone to fast-travel and other just don't fast-travel at all. Such things are commonly mentioned on the Oblivion forums.
Fast-travel is optionable and possible to limit. I know that from experience. If any of you have a character that can actually move faster than a black horse, than you really shouldn't need to fast-travel. Characters move at a snail's pace in Morrowind, but in Oblivion there are horses. If those horses are too slow for some of you, then you are moving much faster than you are in Morrowind, and so you can choose to limit or not use fast-travel at all. If I and many others can't limit our use of fast-travel or not use it at all, then why can't those who support Morrowind's style of fast-travel? I don't prefer Morrowind's style of fast-travel or Oblivion's style of fast-travel.
I would be fine with whatever Bethesda decides to use because I can limit myself if they give us the freedom to choose how we fast-travel and I can survive with any reasonable, already limited fast-travel system. However, I needed to point out that Oblivion's fast travel system isn't just optional(I know quests in Oblivion are put in far away places, but we can move much faster than we can in Morrowind. If that isn't enough for you, then read what I am about to write), but it can be limited. Many people in the Oblivion section of the forums commonly mention placing restrictions on their characters. For example, I don't use fast-travel unless I am on a horse(except for in the Shivering Isles), I don't trap souls or use souls to recharge my items(role-playing purposes), Except for one time when a Daedric artifact was needed for the main quest, I don't complete any Daedric Quests(part of number 6), I don't join factions that my character should be an enemy with(also part of number 6), I don't use skills that don't reflect my characters' personalities and beliefs, and I don't do anything that doesn't reflect my characters' personalities and beliefs. I even just gave up Azura's Star because I don't trap souls or have any use for an item given to me by a Daedric Prince. I do what I believe will result in a better experience, no matter how "tempting" the things I give up may be. They don't tempt me because they are not what I want to do.