I suppose the person that wrote that have not ideia Excel is just an app builder where you embed data together with code.
You know that we have excel because computers didn’t understand column names in databases and so data extraction needed to be made by humans. Humans then design those little apps in excel to massage the data.
Well, now an agent can read the boss saying gimme the sales from last month and the agent don’t need excel for that, because it can query the database itself, massage the data itself using python and present the data itself with html or PNGs.
So, we are in the process of automating Brenda AND excel away.
Also, finance departments are a very small part of excel users. Just think everywhere were people need small programs, excel is there.