Raiden is a good character, but, in order to be well used, you have to be good in "reading" your opponents moves, react properly, timing the teleport, and choose wisely what to use next .... Raiden is a fair character, 50/50 : you read him right, you punish him correctly .... you read him wrong, you suffer painfully punishment, and, that's it.
PL did amazing "readings" in his gameplay, he did not abused teleport as a spamming whore, but, instead, he used very well, very strategic.
People should realize that Raiden is a master of bait an attack action coming from opponent, to next, teleport and punish that action. Raiden will not teleport "for free" or stupid randomly without considering the risky attitude, nope .... his specials moves are all punishable, if you act faster, and bait Raiden to mistake some mind game move for attack, and so, teleport .....
In real fighting , it's called "jink" : bait someone with a false movement, in order to produce a reaction. The way to make Raiden teleport a "double edge sword", is try to foolish him to do it , when he does not need it.
Whiff purposely to make Raiden teleport could be a way ....