"a serious point of" is a perfectly valid expression in written English.
You can use it when you want to emphasize the importance of something. For example, "Outsourcing has become a serious point of contention among workers and business owners."
Such speedups became a serious point of contention between labour and management.
But the company never completed the plans, which grew into a serious point of contention with government officials and the population at large.
Videos of all this can be viewed here.In this section Heat and light Solid sunshine Sinatra, eat your heart out Pasta alla fisica Correction: trees and carbon ReprintsDr Audoly's and Dr Neukirch's research does have a serious point, of course.
"Practically everything that happened was a serious point of contention — a reason to argue, discuss, to generate pages and pages of heated dissertation on what everything means, and why certain things are good or bad.
While it is easy to locate historical rent strikes and neighbourhood uprisings to what you might call gentrification avant la lettre, for the first time, gentrification itself is a serious point of political contention – and resistance.
In his book, published by Thomson Reuters, Jackson states: "Whilst it is not appropriate for a judge to 'campaign' about court fees (or any other form of indirect taxation), there is a serious point of principle here".
There is a serious point to all of this research, since it helps show that our sense of self is far more fluid than you might imagine.
Now this is a serious point for the future of the West, seriously wrong.
And while you may sniff at the idea of a drag show in a country pub as a little bit passe, there is a serious point to the Queens of the City.
The Zenlike decor is perhaps self-consciously aimed at impressing the visitor, but Rosenberg has a serious point to make: Most of what passes for wisdom on Wall Street is bunk.
Even when he has the germ of a serious point to make, he tends to express it in such a garbled, exaggerated, offensive, and ill-thought-out manner that he gets himself into a world of trouble.
