Atoms don't make money. Not for Intel and not for the OEMs.
There have been stories just how much OEMs hated Intel shoving them down their throats in "package deals" they couldn't refuse...
...back then, when Intel dominated the PC market and was bent very hard on banning ARM from invading "their" territory from the low end.
And things aren't getting any better because cores scale down with die shrinks, nearly everything else in an Atom doesn't: they need a full set of connectivity and that won' shrink.
So Intel could do chips with lots of Atom cores, roughly four E-cores for every P. But those would poison the entry server market, which is already pretty much disappearing anyway via the clouds. And gamers would only buy them for their NAS.
16 or 32 core Atoms for the price of an entry level notebook chip, would be kind of attractive for "edge" use cases such as home-infra µ-servers. But investing engineering resources into such a product makes ever less sense for Intel, because nobody wants to pay a lot of money for that.
Snow Ridge Atom-P SoCs are made by Intel for niches like that, but very pricey and very niche with slow refreshes if any.
If you're looking for something economical there, you're probably better off getting an older generation Zen APU, mobile and soldered to some ITX or NUC board or even in a socket with cheap mainboard: there is tons of really cheap deals from China, where these systems evidently flourish also on the local market. Some of these include lots of SATA and Ethernet ports so you can combine them for NAS, firewall and VM server, while they still use little power and are way more economical than what Intel offers new.