1 - "Currently they evidently don't offer trials, you actually have to ask them for them". (They do not directly downloadable, but they do, and I think the main reason is that they manage the licenses through their "Audio Modeling Software Center" which allow you to get the update even during the demo period).
2 - "The iOS versions are only Apple Product compatible". This is not completely true because (e.g. Camelot Pro is compatible with VST2, VST3 and AU If you are on Windows you will not get the AU plugins so if you build your scenes, Songs, Set list only with VST3 and you export it, when you will import it in IOS you will not see the plug ins (This is what I did, and I just have had to change the plugin's to AU version but everything else was OK (Backing Tracks, Instruments templates, Markers, scenes song set List) So if you are on Mac environment use AU you will have no issue to export / Import into iOS. As far as I know, no other company allows this (Main Stage only works on Mac.)
All the SWAM presets saved on MacOS can be used in the Windows version.
iOS Swam's are cheaper because some of their parameters are restricted to full version but if you have the full version on Mac or PC when importing in the iOS version all parameters are taken into account (even restricted ones)
3 - SWAM is a synthesizer product, not a massive sample library product, therefore no decent reason to not offer a demo version without having to ask for or give your email information over. Because of "Audio Modeling Software Center" you can use a dedicated mail address, not a big deal.
4 - "They have every opportunity to change their ways. I very much doubt they will but I would like to have the opportunity to try their products without feeling pressurized into buying anything. " Which pressure ? I have tried Tenor Sax, Violin, Flute, Trumpet, Trombone one year before I decide to buy the product I did not receive any pressure from audio modeling to buy anything !
5 - "iOS products are nearly always starting from a vastly cheaper price point". (some parameter cannot be changed on the iOS version unless you do the changes on the Mac or Windows version and export / import in iOS
6 - "I wish them well, and I hope they continue to grow as a company if the quality keeps improving. I also hope they improve in the sales model. As you point out, they probably won't have to if it's doing so well for them." If you look back this is what Pianoteq did If you compare Version 3 of Pianoteq with version 8 it is a different instrument they did not stop improving their product adding some new instruments, Audio Modeling is also improving timbre, playability, usability in each new version.
I have no financial interest in Audio Modeling, but they have a decent support they are making regular updates I have seen other companies with a worst approach, and they are customer oriented taking users remarks into account
So yes they are expensive, Yes their marketing approach is probably not ideal, So What !