I have been developing web stuff for 20 years now and I also can’t believe comments like these.

Flex and grid enable layouts that are far beyond anything we could do with table layouts. Anyone who claims otherwise has obviously not done any amount of serious, production FE UI design and development.

Are there bits of DX ergonomics I’d like in flex and grid? Of course. Does the syntax sometimes feel a bit arcane? Yeah. But the raw power is there, and anyone who claims the contrary is either a gormless backend developer, or some troll who is trying to design things in MS Word.