On console, light spam is definitely still a problem. The tg changes ERASED light spam issues on console. Many people complained that they couldnt parry in the most recent TG, but i found that anyone complaining was usually using OP heroes like LB or they were using nothing but light spam. I on the other hand, have been playing since launch, and i found that my performance skyrocketed. I was suddenly parrying lights left right and center. That being said, Tiandi IS a problem, at least on console, and the only reason being that a good tiandi will use light spam, enough mix ups to make you think they'll do other things, but they'll ultimately only commit to lights. This way, they are hard to read, even while doing nothing but light spam. Its a bit dumb. The rest of his kit is trash. Its like Cent. Trash kit, but has that one, strangely reliable meta, that just breaks the game.
Only thing im going to say is if you want to stop complaining about a problem most mid tier and high tier players don't have, I'd gladly go into a training session with you to help on ps4. And there are many different ways to counter light spam and horrible, mid tier at best, tiandi.
If you don't want to take my training and you don't learn how to deal with him yourself, then good luck to you.