I think this criticism is misdirected. First, you mentioned memcached, but the article doesn't cover that at all. Perhaps you meant to say elasticache? Second

I think this criticism is misdirected. First, you mentioned memcached, but the article doesn't cover that at all. Perhaps you meant to say elasticache? Second, I think the closing section at https://docs.keydb.dev/blog/2020/04/15/blog-post/#how-are-keydb-elasticache-and-redis-different https://docs.keydb.dev/blog/2020/04/15/blog-post/#how-are-ke... does a reasonable job of answering the "fundamental differences of each technology and the trade offs". If it's not more in depth, that's mostly because it's comparing Redis with two forks of the codebase that haven't diverged that much.