What do you think about this statement.........

I’m not a machinist but I’ve always heard the mag blocks are better quality.
Has production machining equipment not gotten better and/or more accurate in the last 30 years? Serious question because In the industry I’m in, the cnc machines are light years better than they were even 10-15 years ago. I have 3 multi million dollar cnc machines (for structural steel) that are 8 years old and damn near obsolete at this point.
They are better machined from the factory, however the cylinder walls on most I've machined couldn't go over .030 which I think isn't great but wear overall is better to start with.