Vimes,
Although the concerns you raise are valid, the release of Blood Moon introduces two homes specifically (Morgan Regulators and Protection Racket) that will be very strong against the Dudes and Deeds (“Slide”) strategy. This may very well impact the field by producing very tough match-ups for Slide enough to deter folks from playing it competitively.
Hope that helps.
Also if you haven’t seen it yet, there is this wonderfully written article:
I tend to agree with the author’s general points, but it’s worth noting that you don’t have to do everything he says in the article exactly to have a good match-up. Really, the sooner you can (correctly) Identify the Slide strategy, the better your chances.
Cheers.