OP and folks who agree with him/her, let's look at this using the OP's own logic to defeat it:
Popular UK Money program looks at Sony and sees it going practically out of business in 5 years if it doesn't have a major turnaround. That means the PS4 itself could potentially be threatened in 5 years time. Remember, like the last generation, the plan was for this one to last awhile. 7, 8... maybe 9 years. That still includes 5 years from now.
Of course, we all know that the PS4 isn't going to vanish - worst case scenario would be that it would need to get sold off to someone else for Sony to save face or pay off debts. Again, this is absolute worst case. According to Sony, the PS4 is profitable, so chances are that hte PS4 would be one of the last things they sell off - but if it's as bad as folks say it is, they might not have a choice. THat's fine and dandy.
The thing is, the Xbox One isn't selling poorly. They are second fiddle to the PS4, naturally no one wants to be that way. A large reason Nintendo stopped competing in the exact same power struggle field for home consoles was BECAUSE it was too hard to try and make it all work in 3rd... even 2nd, place. Still, this generation just feels different.
Fans are interpreting record breaking sales of the PS4 as the Xbox One is doomed. This would be like Burger King deciding to call it quits because it's not as popular as Mcdonalds. Burger King is still fairly popular, even if it's not #1.
Xbox One is actually selling pretty well. I am unsure if this still holds true right now, but a few months back it was STILL trending AHEAD of the Xbox 360 in the same time period. The 360 era was considered a big success, so I would assume trending ahead of that = Microsoft is pretty happy about it.
I think the Xbox One brand is overstated as a toxic brand. Sure, among tight nit gaming communities like here it may be a bit stained, but to the general public? Most aren't even aware of what happened in 2013 before launch because they don't pay attention. The Xbox One is simply the new Xbox. Releasing a new console with beefier specs isn't going to fix their issues - inf act, it would alienate the existing Xbox One crowd and create a PR nightmare.
After the Xbox One, it's obvious they don't want anymore negative PR. This is like when folks said the Wii U should be canned and NIntendo releases a beefier system - it would really hurt their image worse than riding out the Wii U. Even then, if you look at it, Nintendo has ALWAYS stuck to a 5 to 6 year console cycle. The Wii was 6, chances are the Wii U will be a 5 year. That puts a new console in our living rooms in 2017, while Xbox One and PS4 may be pushing that to 2020.
Anyways, the point here is that Microsoft is best to ride it out, and the system isn't tanking like fans think it is. Not selling as well as the best selling first year system in the history of home consoles doesn't make it a failure. That's like saying the Xbox 360 and PS3 were failures last generation because they couldn't keep up with the Wii. It's simply not true.
Right now, it's about making the Xbox One profitable and continue it's fairly solid sales. PS4 sales may slow down eventually, or they may not, but all Xbox One can worry about is maintaining current sales. Even if they don't increase, they are on pace for some really good numbers in 6 years.