Depends on how they're approaching this. It could very well be that the intention is to produce the highest fidelity production of this as something which is targeted to audiophiles. If that's the case, then they could argue that being true to the philosophy to this launch by keeping it vinyl only.
There are also a couple of counter-arguments against them missing out by not releasing it on CD.
Firstly, if this were even 5 years ago when vinyl was only just starting to make a comeback and turntables were in short supply on the market, you'd have a valid argument about limited playability, however these days, turntables have become quite affordable. In fact these days they're
the price of a blu-ray player at the bottom end of the market, meaning that there simply aren't the reasons to not own a turntable that there were even 5 years ago.
Secondly, are their sales even hurting if you discount this argument? Clearly not. This is now on it's third repressing and you even have people like Ultra Marginal buying this when they don't even own a turntable.
Thirdly, I'd question what the original source for those CD releases was. If it was a digital source then there would literally be no difference between the optimum quality of a vinyl release and a CD release due to quantisation errors existing in both cases. Alternately, maybe the CD releases simply weren't bringing in enough revenue to justify them, or the company felt they hurt its image. That's something that only they can answer.
In short, while people with less discerning ears might want a CD version and perceive no difference between the audio quality of vinyl and CD (and hey, more power to them), they're clearly a negligible factor in the sales performance of this release.