Depends on what you call Atom, but if you mean Atom as it was released then absolutely no, it had exactly zero fighting chance. IIRC first Atoms were Pentium 4 or so fabricated on smaller process and resulting in lower power draw. The only meaningful use for early Atoms was crappy netbooks.
However, it was or could have been an important stepping stone for paving the road towards x86-based low power devices. Remember, it was also a time where linux-on-arm started booming. It could have been an alternative to ARM SoCs, but there were simply too little attractive offerings and Broadcom/Freescale/Ti effectively ate the market
Everyone has rose tinted glasses and short memories when it comes to just how far computers have come in the last 15 years. For reference, netbooks predate iPads by 3 years. They came out about the same time as the first iPhone.
The low power long life computing platform has for the longest time been a dream. Netbooks with 4-8 hour battery existed at the same time that a top of the line laptop would get only 3 hours battery life, a normal consumer grade laptop would top out at 1-2 hours, for a 1/4 of the price.
If you squint hard enough, there is no discernible difference between the aspiration of the netbook platform, and a modern chrome book or iPad with a keyboard, but Intel doesn’t make processors for either platform.
Completely agree here, I call Atom important stepping stone. However, as you mentioned Intel does not make processors for descendant platforms.
As I have elaborated in different comment, I guess the major reason Atom failed was market positioning. They were effectively eaten by ARMs getting more powerful from one end and mobile CPUs getting more power efficient from the other end.
So while I agree that Atom based netbooks helped start the whole mobile compute market, my argument is that market positioning of Atom products meant that they were destined to be replaced. IMO success of Atom required a bit more useful PC-like devices AND high integrity SoCs for appliances.
I honestly think people overlook this aspect of Jobs leadership, basically from the time he returned on Apple he doubled down on mobile computing repeatedly throwing 50% of Apple's marketing budget into the unproven iPod for instance. Why was Jobs able to see the writing on the wall and not Intel? I think Steve Jobs himself said it best:
https://www.youtube.com/watch?v=P4VBqTViEx4
Intel itself was NOT totally blindsided by the mobile revolution. Intel Atom development started in 2004. Intel Atom could have dominated the market. There were Intel Execs pushing Atom. But all the R&D was pumped into the desktop and server business, the quality silicon was reserved for the desktop and server business, Intels execs didn't want these inexpensive chips for what were presumed to be peoples secondary computers to cannibalise its expensive desktop and server chips, and the strategic vision was simply bad. You can apologise for it but the mistake may have doomed the entire business and plenty of companies did not make the same mistake.
One could say "Well Intel's fate was inevitable, they were too entrenched in this traditional business, the shareholders and management would never be able to stomach such a risky shift to a new market" but Intel wouldn't even exist if they didn't already make such a shift away from the memory market into the microprocessor market firing most of the their company in the process. Intel had leaders with strategic vision and guts back in the day, and the senior leadership simply weren't good enough to commit to mobile when that bridge had to be crossed.