Ah yes, this is a very typical comment you'll find among many players inexperienced with Aether.
"The only effective deck using mono-aether... is essentially the classic mono-aether."
Also wrong. I've already listed examples of other Monoaether decks that kick ass. Its rush is mean and can turn any higher attacker than Phase Recluse against you thanks to TU, and Electrocutor will stop all useful skills unless they wanna spend PC on it. Lightning makes for a very effective CC-rush that I've kicked much ass with, and Fractal Recluses is usually way too much offense for any defending deck to handle.
Consider how the cards complement each other: Electro stops skills, which limits offensive capabilities and protects the low HP Phase Spider/Recluse from creatures with Devour. It's also a great damage dealer.
Lightning is, as mentioned, the best single target CC in the game, which severely limits offense. It can also catch the opponent off guard and kill them off earlier than they had planned.
Dim Shield is easy to insert in any Aether deck, even a rush. I won with exactly a deck like that in the recent Trials.
TU can turn your opponent's strong offense against him, and especially with Lightning, this can completely kill a rush. It also gives the Recluse rush a lot more speed.
Recluse is the base rusher, of course. With its low HP, people rarely expect Aether players to use it, much less rush you. I've used that to my advantage many times.
Fractal lets you beat almost any stall, period. Even in Monoaether.
And so on. There is plenty of mono-synergy, even if it's not immediately apparent. As I said, play some more with it and you might find a lot of tricks of the trade.