I’m not a lawyer, but under the definition of “Infrastructure” on page 5, they state that they will construe WhatsApp Infrastructure and Partner Infrastructure accordingly, which to my untrained eye is prima facie evidence to their acknowledgement that these are separate systems, at least one (the Partner’s) of which is not under their custodianship and not named as subject of the first stipulation you quoted. In other words “do not make it so WhatsApp’s own infrastructure would run GPL material” and potentially “do not send GPL material through our systems”
The second one I interpret to mean “nothing with licenses that apply that runtime operation is copy left”
Works fine for me on first glance, with ETP set to strict. Perhaps due to the recent domain cut-over in the web stack?