We know what Orwell was satirising, and why he was annoyed with Esperanto. Don’t worry about it. Orwell was if anything more annoyed with Basic English, and would likely be annoyed with any conlang. (One of the examples he gives in Politics and the English Language is from a text advocating Interglosa.)
Yes, there is an ideology behind Esperanto. It does not actually influence the linguistic materials themselves terribly much. The ideology is benign, as far as those things go (Lanti’s Sennacieco, which Orwell bristled at, was as overt as it ever got), and is not as much in the foreground as it used to be anyway.