Did not read article, but it had better tell how the lungs changed than how feathers developed - every intermediate stage must be viable - that is the problem.
Birds that fly need high metabolism rate so have higher body temperature and much better lungs than man. Man spends half the time exhaling stale air, and worse has used only a tiny fraction of the O2 it contained - huge pumping "pumping energy" requirement. Birds, however have more complex only one way flow system and hold the fresh air static part of the time, and then slowly flow ONLY completely "fresh air" 100% of the time over the absorbing surfaces in their lungs to absorb their large (when flying) O2 requirements. Birds don't even need to expand and contract their rib cage! - That lets it be both stronger and stiffer with less weight.
How can a two way flow system evolve to a one way flow system? What is the nature and advantage of a viable intermediate?
I can find drawings showing how they avoid sending exhaled air back out the same path that is used to inhale, but can't get any to post yet. Here is less than 2 minute video telling all and why:
www.youtube.com/watch?v=iigxJXFJF4U
There is certainly a great deal of "similarity evidence" other than the respiratory systems suggesting the now accepted POV that birds evolved from dinosaurs, but both having feathers is "small potatoes" compared to the lack of even any imagined viable intermediate respiratory system.
Also it is quite common for similar structures to independently evolve - this has happen at least a dozen times with "eyes" - pit vipers "see" with stereoscopic vision in the IR to find a warm blooded mouse to eat. The octopus's eyes are quite human like in design, but better design as the retina is in front of all the blood vessels and data collection network of nerves, not behind them. - this transition too has no viable intermediate - hence an other wise IDENTIACAL visual system evolved independently. Often there is one best way to do any task and nature tends to find it, quite closely, so identical structures are to be expected, but do not PROOVE one evolved from the other.
Mother nature is also often "trapped" by an early choice made. For example the giraffe evolved from creature with hardly any neck. One of the facial nerves connecting from its check to the brain happen to go under bone that became the "collar bone" There was no way that is viable to switch it to go on top of that bone. So now the neural impulses that for example tell the giraffe she bit her cheek go all the way down that long neck and then travel all the way back up it to reach the brain for processing what happened. No human baby that survives will ever get the retina up front of all that structure blocking part of the light. Humans are "trapped" with an inferior to octopus eye design.
If creation "science" and the Bible are both correct this implies God looks like an octopus as he/she made it with the best eye design. "His own image."