SQL is clearly the right way to store large quantities of data (some would say the only way.) Until some folk realised their context was different, and NoSql was born.
Strategy is hard because it plays out in the long term. Two roads diverge in a wood,and you have to pick one. But the consequences if that decision may be felt 20 years later, or next week, or never.
Advice from those who went before is valuable. But care must be taken to understand the context of that advice.