Not it's not hard to dismiss it as a different game because it is. A couple of specific similarities does not immediately make all things similar. The bar in Revenant's toll is called the 7th Heaven and even includes the new secret base just like in FF7, but I don't expect Tifa and Cloud to come out all of a sudden because they didn't take every aspect. The bar itself doesn't even look the same. Another great example is the Crystal Tower. The mystical land Eureka won't be appear in the same context as it was in FF3. Yoshi has already told us as much and this is despite CT and ST following so closely to the original FF3 formula. Eureka as portrayed in FF3 didn't fit with what they were trying to do in FFXIV so they chose not to use it and will instead use it in a different way.
To summarize. They are perfectly allowed to take aspects they like and ignore aspects they don't like. Period.
Lastly, that isn't irony. In a fan service game using 1 aspect in a similar way to how it was in another game is expected (I mean that's why this thread exists) and that means it can't be irony since it was expected and easily foreseen.