The complexity of web standards isn't necessarily a bad thing. A lot of the "complexity" (as usually judged by the raw size of the spec) is just existing APIs evolving to be more rigorously defined. Before that level of specificity, browser implementations varied and engineers had to make certain decisions.
A more "complex" spec can sometimes make the job of the engineer simpler.
A more "complex" spec can sometimes make the job of the engineer simpler.