npm WARN deprectaed

[Opadera]

I get a bunch of errors running npm install in \openlayers-workshop-en

npm WARN deprecated minimatch@3.0.0: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue
npm WARN deprecated minimatch@0.2.14: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue
npm WARN deprecated minimatch@0.3.0: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue
npm WARN deprecated node-uuid@1.4.7: use uuid module instead
npm WARN deprecated wrench@1.5.9: wrench.js is deprecated! You should check out fs-extra (https://github.com/jprichardson/node-fs-extra) for any operations you were using wrench for. Thanks for all the usage over the years.

Win 10
node.js 6.9.1

Is all the node stuff really necessary to start a tutorial? Seems like a high entry threshold to get to know OpenLayers and it's harder to transfer the examples to my own application.