LOL you guys love talking in truisms because its much easier than actually analyzing things as they are. The 70s were 50 years ago. The players of that era were a completely different breed. They grew up in a completely different system and played cricket much differently than it is today.
But to say that they were somehow the embodiment of everything Pakistan cricket should be is a gross over exaggeration. For one thing, none of the players you mentioned were as good as Babar Azam. And for all their fearlessness, most of them were snakes who consistently bit each other's backs to get to the captaincy. Everyone knows full well how all the senior players banded against a young Javed Miandad when he became captain or how Mushtaq was ousted despite being one of the most naturally gifted and tactically sharp captains Pakistan ever had.
The entire team was about Karachi-Lahore. And this ugliness would rear its head consistently in selection. It wasn't like today when players from various corners of the country were part of the team and the national set-up.
And since you are so wistful about 1970s, let me remind you that Pakistan won two away away series in the entire decade. Both in New Zealand against a third-tier New Zealand side that was probably the worst test team in the world at the time. Failed to win two series in Australia, two series in England, failed to win in West Indies.
So much for being fearless against pace....
I agree there's a tendency to romanticise the glorious past, which wasn't as glorious as we assume. However I must take issue with the bolded. Drawing 1-1 away to Australia in 1977 under Mushtaq remains our best ever Test series result in Australia.
That Australian team with G Chappell, Lillee and Thomson hammered England in the 1974 Ashes and beat world champions West Indies 5-1 in 1975/76. Failing to beat a Packer-depleted Australia in 1979 was disappointing - though Sarfraz's MCG performance is unforgettable.
Pakistan bravely fought in the West Indies in 1977 when they began putting together their fearsome pace attack, and should've beaten them in the 1st Test (and drawn the series) but for appalling umpiring as WI held out in their 2nd inns 9 wickets down. In Mushtaq's PP interview, he said umpire Douglas Hang Sue told him he couldn't give Pakistan any decisions as he was scared for his life.
Beating New Zealand in 1979 was an excellent achievement. That team with Richard Hadlee would go unbeaten in home series in the 1980s (with some help from Fred Goodall and co).
Overall though, yes given the talent that side had, Pakistan underachieved in the 70s with a backdrop of intrigues and politicking. However we must
divide the 70s into Intikhab Alam's era and Mushtaq Mohammad's.
Inti was a defensive and unimaginative captain, who only remained in post as he was, as we've seen for decades, an establishment yes-man. The bottle jobs in England 1971 and Australia 1972/73 was criminal !
Mushy however began the era of more aggressive, flamboyant Pakistan cricket. Babar for all his gifts, does not compare to Javed Miandad or Zaheer Abbas vs spin, they butchered India's great spinners famously in 1978/79. Compare Mushy's intent in overseeing two T20 style chases in that series to Babar's negativity vs Australia.
Finally, despite Javed Miandad's tactical acumen, was always an awful man manager hence was mutinied against not once but twice in 1982 and 1993.