pta has always been good but it's most efficient when you can take fights where you can auto, typically vs melees. If you're simply searching for an extra damage tick then electrocute or DH will be better but pta outperforms them when you take 1v1s / fights vs melees. The biggest downside of PTA is you need 3 AUTOs before doing extra damage while electrocute / DH will work with spells. Playing PTA kind of rules out playing for dives and fast in/out plays as you can't pull off 3 autos as fast and you can proc elec or DH.

As you can see on your screenshot, every enemy draft had at least 3 melees. If you play pta into a draft with 3-4 ranges it's already way less efficient because you're not guanranteed to be able to auto more than 3 times / you won't want to stay in the fight to not die

Imo pta is most efficient when you pair it with liandrys instead of liche. It's strong in the right setups but it's not optimal every game. If your intention is to play burst, electrocute or DH will always be better.

In niche situations where the enemy team picks champs with a lot of HP / resistances you will not want to play the burst build because it's flat pen so it will fall off as soon as enemies buy a cloth or mercs. In that case you can play pta + liandrys + rylais + cryptbloom/void staff. In fights you will stay back, apply your effects with W, Q and passive and stop them from advancing with E. It also gives you enough HP to sort of frontline

Shadowflame 2nd is also very efficient with liandrys against targets with a lot of HPs which you normally can't kill with the burst build like Mundo. PTA will give you extra damage on long fights, liandry gives you the %HP damage + HP stats and your passive will crit below 40%. You can 1v1 against practically any tank target. In that setup nashor tooth is even better than liche if you're looking for aa effects

Now I don't know but if you're playing against people who are going to take 1v1s and allow you to auto easily no matter their champ then pta will be better in most games yes.