For individuals you have a point, but for small and medium companies this seems like an exaggeration.
I've worked for several startups. The smallest was one that I co-founded with no outside funding - we maxed out at five employees, three of whom were co-founders, but nevertheless we registered and successfully defended trademarks and copyrights. That business ran until its main product became obsolete, for about 5 years.
The funded startups I've worked for all used the legal system around IP in various ways: trademarks, patents, copyright.
One of these bogus DMCA claims would be easily and cheaply dismissed by any competent lawyer. And really, probably doesn't even require a lawyer unless a hosting company acts on it and doesn't listen to any objections.