It&#x27;s a piece of advocacy.  I wouldn&#x27;t expect it to discuss downsides much.  What irks me more is the absence of meaty arguments <i>for</i> the language.<p>But then I realised that explaining <i>why</i> the listed features are good is hard.  Someone who haven&#x27;t been exposed to FP is going to take a <i>lot</i> of teaching and persuading.  Or a damn good motivating example, but I have yet to find one.