Then how come it's only a vocal minority complaining? It seems only a large number of tabs and many background apps cause this. Just open fewer tabs and it'll be fine.
I have seen Safari crashed with just few tabs. Not sure if this is memory related issue or just Safari? I can open many tabs with Atomic and I don't see any issue, not that I would open many tabs during normal usage. Your suggestion is to use less tab? that doesn't fix the issue.