That is also the consensus I've come to. Whilst the big guys usually also did moderate-to-high amounts of testosterone along the way (like John Jewett for example), anyone with decent size and who looks truly impressive almost always has a considerable period where they used decent amounts of Tren/Nand at somepoint if you dig into their background.
There are always exceptions of course - but I think the reality is that even in those cases where the genetically blessed could do it on a teaspoon of Test, they would still do better on these combos if it can be tolerated. Get in with the harsh compounds early to build, then get out and rely on the 'safer' ones to slowly refine at a weight-cap/where you're happy with your look.
I find people tend to promote the Test only or Test/DHT combo in the following sort of situations:
1) Risk reduction to other people - not a bad thing of course, just highlighting what people recommend years in is often aligned with their own biased experience and where they are at currently rather than how they got there.
2) They are highly advanced but can no longer tolerate nand/tren and have no choice.
3) Succeed with Test/DHT combinations in spite of them - not because they are 'better'.
4) The fact that it's mostly those who've 'made' it giving that advice. They are usually highly advanced already and refining a physique at a weight cap with no need/ability to grow much now. Usually they then start giving advice they didn’t actually take themselves and not representative of how they actually grew to that size. They may think after the fact that they would have done it differently and 'regret' using Tren etc if they ended up having an issue with it, but they can't know for sure if they'd ever have been able to attain the same mass without. They can only speculate on that, and the reality is - just to make things even muddier - usually you don't hear from the people that didn't or don't have issues with Nand/Tren. So that skews it further.