The fact is the people who believe the Su-35 deal is real are just throwing crap on the wall waiting for one to stick.
These are the past claims in chronological order on the Russian side:
1) The Russians stopped selling to China over IP theft.
2) The Russians won't sell Su-33 because China won't order enough to bother.
3) The Russians sold the same engine on the T-50 that's on the J-20.
4) The Russians are trying to sell Su-35s but IP theft is the hanging issue.
5) The Chinese just want to buy the Su-35 so they can learn to copy the engine. (The same engine they claim to sold to China that's on the J-20) Too few for the Russians to bother.
All new excuses contradict a previous one. It seems the overhanging issue is IP theft so why do the Russians keep trying to sell the Su-35 to China when this is still a problem. If the Russians think China cheats with agreements, why would they bother to keep trying to sell it to China?
Notice who believes this deal is real? Pro-West and and pro-Russian. Why? Because they both don't want to believe that no one can go it alone without either one of them. That sums up China's impact on their stranglehold overall in everything. The West predicts China's economy will collapse simply because they're not doing so well. Ergo, China will fall soon. This story is just their attempt to bring the same theme to every level. It doesn't matter if China doesn't have an engine at the same level as theirs. It works at an acceptable level that they trust them on new fighters now and just as long as it lasts longer than one sortie, who cares because China has a working one and that's all that matters. It can only improve from now onward. It's sort of like the logic that China shouldn't build and operate carriers because it takes decades to master. Well it has to start somewhere. Maybe because they also think the Chinese instinct to go to war and can't wait to conquer the world will happen before they're even ready. Yeah they're all concerned about how much money the Chinese will waste. Now they want to make everyone believe Chinese engines won't last more than one mission to which why they need to obtain one the Russians already said was sold to China and on the J-20. That's called a contradiction and a history of lying. Yet look who still believes all that bull. When people makes so many excuses that they start contradicting, at the heart of it is simple denial and wishful thinking.
Let's also not forget the real reason why this deal keeps coming up is because some have personal issues with Chinese in general and they just want to act as spoiler even though they know they'll end-up being wrong because that's all they have to salvage from the rise of a China none of them ever imagined was possible. Before the emergence of the J-20, how many beyond the average China watching enthusiast were there that believed it was impossible and was nothing but a Chinese fanboy fantasy? How about all of them? Now they act as if they never believed that simply because they don't want to admit they were wrong. And that's the simple motivation behind it here and why they keep bringing it up.
The Russians can be trusted from their end? Look at how many deals signed get hung up in the process to cheat the buyer out for more money. Yeah the Indians are trustworthy to the Russians. Too bad India now experiences the same delays and for the same reasons the Chinese faced with deals. Yeah and China is begging for more of that despite experience.
Because China has the J-20, lol?
Yeah hence why would China want the Su-35? Is the T-50 superior or inferior to the J-20 to tis why China isn't wanting nor the Russians offering the T-50 to China? And the excuses can be applied to the same with the Su-35 non-deal.