By the same sense, I am yet to see any WoG ruling indicating that Telekinesis (self) is allowed. Anyone saying that self telekinesis makes sense from a flavour perspective imho, has zero idea on what telekinesis is. Telekinesis by its very nature is a supernatural ability that grants a life form the power to manipulate objects with the power of their minds by focusing on the object in question. A limitation of telekinesis, according to the wiki on superpowers, is, quote: "May be able to move only the objects that they can see." Wikipedia (who refers to telekinesis as psychokinesis) seems to agree with this. Based on this logic, the very idea of being able to lift yourself into the air with the power of your mind is impossible, since you cannot see yourself in your entirety; only parts of your body. This in turn renders any idea that you can lift yourself into the air with your mind in ASB pretty much moot. By the same logic, you could allow Pokémon to use Double-Edge or Earthquake on themselves, even though it makes no sense flavour-wise, just like using Telekinesis on yourself.
Balance wise, the fact that you cannot avoid any attack is not enough compensation for the fact that you can fuck over anyone relying on seismic moves or dig. The fact that you have to sub around it is not a good enough excuse when there is no sub class it goes into, & also the fact that the same argument can be applied to the far more splashable protect, counter, endure, or even the super broken endure + protect that some referees have been allowing for some reason. It furthermore goes against the whole principle of the move, which is to lift another Pokémon into the air either for Earthquake immunity or to ensure that your Hypnosis will hit the target.
Heck if I had things my way, self-targeting moves would be banned, or at the very least, create a white-list for them, in order to stop these whole guessing games on whether something can be self-targeted or not. But even then, I feel like that using Telekinesis on yourself has no place in ASB from a competitive, intent, & flavour standpoint. Kill it with fire.
===
Also if anyone wants to object to Endure for CT: None, then do so now, or it will probably be implemented directly sooner or later.
Technically, you could lift your feet while keeping them oriented in the same way. Also almost every fictional character has used Telekinesis for levitation.