"has been less focus" is a correct and usable phrase in written English.
You might use it to describe a situation in which someone or something has received less attention than usual: In recent months, the issue of climate change has been less focus than usual due to the global pandemic.
However, there has been less focus on how aggregate fractions affect soil microbial communities under different ameliorant applications.
There has been less focus on what most interested the public – the link suggested between MMR vaccination and developmental regression in eight of the 12 children.
But there has been less focus on the savings industry, with early assumptions about the poor's savings habits taking time to change.
It is increasingly realised that enacting such policies will have unintended implications for public health, but there has been less focus on their implications for wellbeing.
A number of researchers have investigated the impact of HFQ on market quality measures such as liquidity and cost of trading, but there has been less focus on how HFQ affects systemic risk.
While most of the attention has focused on Central and Eastern European anticipation about what Western Europeans might do for them, there has been less focus on what the current members want from the Easterners.
"Kylie has a much more European sensibility," said Mr. Zee, adding that her look has been less focused than the next generation of pop singers like Rihanna, Katy Perry and Lady Gaga.
The Occupy movement in Hong Kong, which also calls itself Occupy Central, referring to the central financial district, has been less focused than similar movements elsewhere on engaging with the community and rallying support.
Trump has been less focused on the memoir of former New Jersey governor Chris Christie (R) — who wrote scathingly about Kushner but sympathetically about the president — though he told aides that he has not "loved" all of Christie's comments during his media tour, according to a senior White House official.
Water Defense has been less focused on lead than on other contaminants in Flint's water, particularly byproducts of disinfectants such as trihalomethanes.
