Working for an engineering company, we have lots of products that require the use of ø, °, ², ³ symbols in the description of products.
Many of products are bespoke, so even if we had an pre uploaded inventory list with the symbols in it, it still wouldn't cover us.
Currently, the only option is copy & paste from another document into the description, which is tedious and time consuming.
Simply by allowing the Alt + shortcodes to work would solve this issue for a vast amount of companies.