As far as I could tell from my conversation in the water strider thread, that was akin to the High Elf echo chamber thread, it’s because of a handful of misconceptions people have that they are against this change. From my experience it was:
Fear of change.
Happens with humans all the time. There are the rational, critical thinkers, and then there are the illogical, emotional types of people.
The idea that WoW will never evolve.
I’ve been playing since original WoW beta when I could ride a black raptor without a saddle on it. This game has changed drastically, many times, and will continue to do so in the future as the devs come and go.
Having an emotional connection to walking on water/ a mount.
Some people simply “feel” that they have lost something of value, when, in reality, they has several years worth of using said item. They got their value out of it, clearly.
Being upset about needing to buy things with gold that “they earned”.
As far as I have seen throughout WoW, just because I get to exalted, does not mean I get something for free from that faction’s vendor. Blizz will send them a free pair, and regardless of the cost of the boots, there will be a cost. And, as with everything else sold, there should be a cost associated with it. They will simply pay or not have the water walking.
Boredom/Negativity/Need to complain about anything.
A think much of it stemmed from people’s general frustration’s and they focused on something that is very trivial to vent those negative feelings. Human nature. They know it will not change reality, but complaining helps them feel better.
Conclusion:
In the end, this will be a new system. The system did not exist like this before, and therefore, the water strider’s inherent ability needs to be removed because a new piece of equipment does the same thing. The golem need not be changed because there is (as of yet) no piece of mount equipment for its ability.
The water walking that will now be in the game works like the water walking buffs. In fact, that is, more or less, what the mount equipment is. It is giving players some new choices that are the class buffs. Water walking will now work just like the shaman’s walk on water. The parachute is literally a mage’s slowfall. And the anti daze is the same “unseen” buff that tank specs have that will not allow for dazing.
I like the new system, personally, in that it will give us more options and choices for customization- things I love that many iterations of WoW did not have. The dev’s are seeing that players in game respond well to being able to choose more races, transmog, share mounts across toons, pets, and more. This new system will allow for new crafted items for professions, and it could potentially open up all kinds of other equipment by using the abilities of other classes as well. For example while mounted maybe there will be equipment allowing any of us to:
Double jump while mounted/higher jumping. (Demon Hunter)
Sprint on mount (Rogue)
Blink (Mage)
Heroic Leap (Warrior)
Charge (Warrior)
Levitate (Priest)
Water Breathing (Warlock)
Fast Swim (Druid)
These are a few off the top of my head. They could also have “epic” or even “legendary” ones we can obtain access too based on mounts earned or having a certain number of a type of mount. For example, allowing us to stay mounted while fighting (probably disables flying while in combat). Anyway, this system is cool, in my opinion, and I like it, but not everyone will, and that’s ok!