Yes. At an airbus scale, most definitely.

But to give you another example (from the article): Try migrating Google Workspace to an EU solution. Actually impossible. I tried it myself, and gave up. The closest you’ll get is Proton, which isn’t EU to begin with and doesn’t even have half of the features Google Workspace offers.

Well proton isn't Eu but its switzerland and I think that proton is going to move some of their servers to germany after switzerland had this questionable decision which feared privacy services (including proton)

Proton recently got proton sheets/proton docs

Personally one of the largest issues I have with proton is the lack of extensibility. Like google has app scripts and similar api's but proton's lack of api's have frustrated me so much that I have built an api over scraping/using a puppeteer instance over it but its still in very finnicky state

Well, I am not sure about the newer BTP-based stuff, but the main ABAP-based core of an SAP S/4HANA system certainly does not need those capabilities, as it is still basically the same running in on premise systems. The priority of a couple of BTP apps might be quite low, if they are not starting from scratch.