Indeed! There's a lot of Bayesian propaganda floating around these days. While I enjoy it, I would also love to see some frequentist propaganda (ideally with substantive educational content...).
I skimmed through a couple chapters before returning it for a refund. I sometimes regret not keeping it as a curio, but I was a poor grad student at the time and it was an expensive book.
Statistics & machine learning book authors seem to be really good at providing a free, electronic copy.
I think that frequentist statistics doesn’t need marketing. It’s the default way to do statistics for everyone and, frankly, Bayesian software is still quite far away from frequentist software in terms of speed and ease of use. Speed will be fixed by Moore’s law and better software and easy of use will also be fixed by better software at some point. McElreath and Gelman and many others do a great job in getting more people into Bayesian statistics which will likely result in better software in the long run
From theoretical statisticians Larry Wasserman is more on the frequentist side. See for example his response on Deborah's blog [1]. But he doesn't advocate for it in his books. So yeah, besides Deborah, I am not aware of any other frequentist "propagandist".
[1] https://errorstatistics.com/2013/12/27/deconstructing-larry-...