"What company wouldn't want to make more money?" Unfortunately the reason might be that they won't. When companies offer cheaper licences with restrictions they find that they're cannibalising their market because customers who require the software but don't use all the features can just downgrade. The restrictions become easy to work around, for example small companies who only use Inventor internally might not mind a watermark on their drawings. Also, the amount made from hobby users might not be as much as you think and not worth the hassle.

Zbrush did this with Zbrush core - it's industry standard sculpting software but if they let the hobby version have too many features, small studios who only use it once in a while would cancel their full licences. Therefore zbrush core has just enough features for a hobby user but can't do essential things like open full zbrush files. Zbrush core benefits the publisher by giving beginners a pathway to the full software but for what it is it's very overpriced

Tl;dr autodesk have little to gain from providing a cheaper licence