To the extent that singers should be considered stewards of their repertoire, equating bad singing to whatever “verismo” is will only be to the detriment of verismo.
“Let’s start at the very beginning” of Kent Nagano’s pioneering complete Ring project which was recently discussed here in depth in Montagu James’s review of Die Walküre.
Unlike more surface-level historically informed practice which has become the norm in early music ensembles, this project stands out in its surprisingly deep engagements with the ethical and practical challenges posed by “recreating” Wagner’s sound.