It is so strange that pasting with formatting is the default! I have so far never wanted to paste with formatting a single time. I dont even understand what use case it is addressing.
for the latter programs having the default be paste with formatting seems fine. yes, i'll paste stuff from the web without formatting. But copying/cutting/pasting within the same document is also a pretty common interaction and if i'm cutting something non-trivial (eg. google docs table/nested lists), i don't want to paste it back into google docs as a bunch of regular, separate lines.