The phrase "became pointed" is grammatically correct and can be used in written English
You can use it to describe a sudden change in someone's tone or behavior, as in the following example: "Her voice became pointed as she accused him of lying to her." Here, the phrase "became pointed" indicates a shift from a neutral or calm tone to a more accusatory or sharp one. This phrase can also be used to describe a physical change, such as in the following sentence: "The end of the pencil became pointed after she sharpened it."
Most are careful not to provoke their hosts by flaunting their nationality or offering political opinions, but occasionally the conversations do become pointed.
When violent jihadism made Brussels its target, the relevance of their testimony became more pointed.
The charges and countercharges became more pointed and personal as the proxy campaign progressed.
Her wonderful version of "The Gentleman Is a Dope" became a pointed indictment of male privilege and shortsightedness, sung sweetly and caressingly.
In May, when the Honduran government arrested five men suspected of committing Cáceres's murder, questions about the state's involvement only became more pointed.
When the political humor on "The Smothers Brothers Comedy Hour" became too pointed, CBS canceled it, despite strong ratings, and replaced it with "The Leslie Uggams Show," a lightweight variety program.
Debates over Darwinism became more pointed in 2005, however, as school districts considered teaching intelligent design, and President Bush stated that it should be taught along with evolution.
As the topic switched to phone hacking, questioning by Mr. Jay became more pointed than on Wednesday and Mr. Murdoch in turn pushed back in stronger fashion, at one point even seeming to attack Mr. Jay.
Nevertheless, Frank was reëlected with ease, and he became a pointed critic of the Republicans who took control of the House in 1994 and a passionate opponent of Clinton's impeachment, in 1998.
The Stealers Wheel hit "Stuck in the Middle With You," whose original version seemed content to clone the sound of the Beatles, became a pointed expression of paranoid discomfort felt by a performer surrounded by sycophants.
