Read Derren's post, which FE was replying to. Derren specifically said 4e was a failure because people expect a new edition to have as many options as the last one, towards the end.
I did read Derren's post, and that's why I replied. At no point did he mention supplements. At no point did he use the phrase "towards the end" or anything remotely like that. You are making that up.
So, again, his analysis is correct if you compare core-rules to core-rules.