Namecheap did de-prioritize Afternic for Sedo for a while and during that time I was getting about 10-15% of sales via Sedo/Namecheap.
It is not a good thing for sellers, as Sedo is notorious for having others listed unowned names and I am not managing to add about 14% of my names. And they don't care to fix it or make easier verification method like unique NS. So I'd be losing 5-10 sales a year because of this.
Now, NC reverted back to AN after using that as a negotiation chip for something, I assume.
And this "most likely" and mentioning Spaceship enrollment problems with AN tells me that it is another negotiation chip moment for him. He'd rather stick with AN as it performs better (the same problem that I mentioned above means NC has to deal with around 15% of names not being delivered, e.g.), but will go to Sedo if GD/AN keeps making it difficult...
My bet: they will figure it out, Spaceship will be become FT member, NC will stay with Afternic with 90% probability.