Yes, the original Oberon (which the system is based on) has upper-case keywords (and some other orthodoxies). If you are looking for something more modern, go to https://github.com/rochus-keller/oberon, https://github.com/rochus-keller/luon or https://github.com/rochus-keller/micron.

Yes, like Modula-2 as well.

However, people always forget we don't program in Notepad, rather programmer editors that are able to do automatic capitalisation of keywords.

It is a non problem, like discussion of parentheses or white space in programming languages that require them.