And yet, these "easy" new hires still get subjected to interview questions about algorithms and other useless things that don't actually matter to the work at hand. Sadly, I've seen too many clients wind up with great CS candidates who can allegedly solve all the things, but can't actually join the team and solve all the real things.[1]

[1]: Unless, of course, by "solve" you mean rewrite everything from scratch in New Hire A's language and framework and toolset of choice because ... reasons.