Unless something has changed recently, the letters of recommendation are pretty much a formality. If you have a bachelor's in CS with decent grades, getting admitted isn't difficult. I was pretty flippant about the whole thing, applied one afternoon on a whim after reading about it on HN. Asked my manager for a letter of recommendation as well as my nearest colleague. No letters from anyone in academia.

I think the people who have the most difficulty getting accepted are those without a bachelor's in CS who also don't have some good CS fundamentals courses to show achievement and interest.

I did complete the program, and I am happy for the accomplishment. But with my experience (I started working in the mid 90s) this wasn't for my career, it was for my own satisfaction. But in addition to being glad for the achievement, I was soooo glad to be done, LOL. The real commitment is not financial, it is time.

I have not applied to this program but I've gone through a part-time MBA. I doubt that an online program for working professionals is as rigorous about references as, say, undergrad admission to an Ivy League program or Oxford or Hogwarts or something. Just get a couple of coworkers with a similar advanced degree to write something that says "this person exists and I think they can handle the load" and you'll be fine. Remember that college is a business; if you look like you can both handle the program and pay for it, they'll let you in.

I hit the same roadblock unfortunately. My academic references were all in a different field and I hadn't really stayed in contact except with one professor, who sadly has died. I did see that there's an option to use professional references, so even though I haven't done this myself, one route you could consider taking is to get references from managers, colleagues etc. who can speak to your technical knowledge. I agree though with your general point that after being out of an academic environment for a while that requirement becomes challenging.