I believe it is absolutely relevant, and especially where newcomers to the language are concerned.

I've got a metric ton of war stories where use strict;alone accounted for most or all of the solution, and I'm not going to bore you with them here.

The notion that it's "easier" to not use strictures has misled and waylaid far too many people for me to believe otherwise. It might be a tad bit easier for an experienced Perler to write a one-off, but that's about the only place I can justify the risk.