Sorry but that is just completely off the mark. As Neüeinsteiger you simply is not going to get everything served on a plate. Many payware routes have been released without ANY rolling stock. Routes is one thing, rolling stock is another.
And even if RSSLO delivered rolling stock in there, then my guess is that you would complain that the quality was not good enough.
Even some of the high quality routes have come with rolling stock that was highly simplified.
You build a collection of routes that you pay for, and you build a collection of rolling stock that you also pay for. It has always been that way in TS.
But hey, go drive all the appropriate Swiss, Austrian and German trains that came with the Three Country Corner route.....oh wait....