Yeah, it actually is. There is an avalanche of awful, unacceptable, outright sexist female leads & protagonists in most kids stuff, even today. For every Brave or other good example, there are a thousand Barbie-style CGI garbage movies.
I fully admit you're not aware of the bad ones unless you have a daughter though. You need to trust me on this, though - next time you're at a store that sells DVD's, go look at the pink section.
As for your other examples... Glitch, meh. She's kind of neutral. I liked it, but the entire movie she spent whining and being dependant on others to get things done. It was a funny role, admittedly.
Frozen - literally the two worst people you would want to run a country, haha. It was better than most other movies though as far as role models are concerned, fair enough.
How To Train Your Dragon 2 is a better example of this than the first one was.
Still... these are a small handful of acceptable movies in a horrible put of terrible role models for young girls. You would be amazed at the crap my daughter's friends watch and how it affects them. Like, 6 year olds chastizing my daughter for wanting to be a doctor "because that's a boy's job, girls become vets".
I dunno... I fully admit it gets to me more than some other people. I mean, even now, I feel like I want to go rifle through her DVDs and pull out all the garbage she's been given by her friends over the years.