Send Susi Wehrli an email and ask about your coverage, assuming you were registered as a Basic Skills member of the skating school before the accident. All the links lead to that document called "The Insurance Program," but parts of it say that the coverage isn't for skaters, it's for spectators. There used to be a separate document; maybe the deductible wasn't as high.
Let's be honest: people will sue because they think rinks are gold mines and they just struck the mother lode by taking a spill. Unless they can prove negligence, or the rink pays them to go away, the lawsuits wouldn't do anything but raise the rink's insurance coverage. A knowledgeable skating director explained that your personal health insurance has to pay first, then sports accident insurance. The rink's liability insurance is only invoked if there was some liability, such as a slippery floor or poorly-maintained site.
On a related note, but OT: I went to a NYC rink that forces EVERYONE sign a waiver that says you won't sue them and acknowledges that they don't carry liability insurance. They have a guy sitting at a desk with a notary stamp of some sort - you can't pay admission until you have a signed, stamped form on file. I really think that can't be legit. Maybe sk8lady will clarify this, but I can't imagine the City allowing them to operate without insurance.