Neither Lyon nor Starc have been our two best bowlers for most of the time they've been in the team. None of us who watched Starc bowling in the Sheffield Shield prior to the series would have been surprised that things happened as they did - he was horrendous. The only real surprise was that he held it together for two tests. As for Lyon, I knew we were in trouble from pretty much his first over in Adelaide when he turned the ball about half as far as I expected. He's had an impact against the rest of this team in the past and without it Australia was in a worse position before you even consider Pant.
While Pant evidently has a kryptonite aspect for Australia, partly because he plays in a style that works very well here (and don't forget that still requires Paine's butterfingers at Sydney) I think it's silly to talk about 'player x having a hold over y' when India's victory was collective, which different players being able to contribute at different times and overcome issues like bad fielding and inexperienced bowling to frustrate a team dependent on too few players and operating on strategic and tactical autopilot. Despite the freak events of Adelaide India simply proved to be the more resilient and responsive team overall. The question is why Australia is so lacking in both, and it seemingly comes down to the leadership or lack thereof.
1 What I meant was that Starc is one among the best Aus bowlers - which is a fact. And so us Lyon.
2. Pant and Gill had their stronghold on Aussie bowlers as they realised they could play unorthodox/ unconventional cricket. For example- Lyon sticks to his wide outside off and has been successful , particularly because RHBs are schooled not to hit against the spin and with the bounce, trying to smother or going for expansive shots would result in a higher percentage of catchable shots. Rohit Sharma, usually a good player of spin in SC, was found put by Lyon in both 2018 and 2020. Rohit was largely tied up on the off side (unless short pitched) as he was conventionally not encouraged to drive against the spin. This resulted in him having to go for lofted strokes to mid wicket / long on and was dismissed twice in each series in the same manner.
In comes Gill, with a refreshingly different approach. The very first ball he faced from Lyon ever, he stepped out and drove it to extra cover- against the turn - for a two and then followed up it with another for a four. The reaction from Lyon was priceless, like a top level magician whose best trick had been found out by a member of the audience. He was backpedalling to his run-up startpoint looking intently at Gill. For the entire series, Gill had no problems with Lyon.
Pant also used the same trick against Lyon in addition to many others. The result was that when he came into bat at Gabba, with Indian needing 165 odd from 35 overs or so, there was a long on, a long off and zero close in fielders. If that isn't a symptom of a batsman's mental stranglehold on a bowler, I dont know what is.
I also loved how Gill played different varieties of the pull and hook on Starc. And based on the interview with Vikram Rathour, it was a plan worked out by Gill himself. For the usual bouncer at the head, Gill would hook it for six. For the bouncer at head high but outside off - Gill would smash it over third man. For the short ball aimed at the rib, Gill would execute the short arm pull to square leg, and for the short one just outside off - he would employ the rasping full blooded pull to cow corner. It was magical to see how a 21 year old had developed and executed a plan to completely neuter a world class fast bowler.
I think more than Pant, who always gave a chance, it was Gill who was the X factor in Indian batting.