The phrase 'one point though' is correct and usable in written English.
You can use it to add an additional point or idea to something that has been previously stated. For example, "I think the senator's plan is flawed. One point though, it does have potential if the necessary adjustments are made."
On one point, though, he was unwavering.
Our memories diverged on one point, though: the Indian bosom.
"How would you put eight sticks of dynamite … next to a woman and a child and not expect it to hurt them?" On one point, though, they agree.
On one point, though, most principlists were agreed: while Rouhani was hardly their favourite, it was Jalili and his supporters who were most despised.
He's very clear on one point though: whatever story the Minecraft movie tells, it will just be one story among many possible, matching the way there is no single 'right' way to play Minecraft as a game.
Putting aside the differing views of when advertising will stop bouncing along the bottom, everyone agrees on one point: Though the current economy is not technically in a recession -- generally considered two consecutive quarters in which the overall economy declines -- it is affecting everybody very much like one.
On one point, though, Father Jordan has been repeatedly, publicly assertive: he believes that nonunion contractors do not provide the high level of training that construction unions do and that, as a result, nonunion workers face a greater risk of injury or death.
There is one point, though, on which we can both agree: it is imperative that older and younger people work together to find solutions to these holes in our local democracy that have an impact across generations.
Bailly looked alert and mobile and pulled off a saving tackle on Emyr Huws at one point, though the Wigan front line did not exactly give the United defence the most rigorous of examinations.
At one point though Jason became so abusive on a phone call that he actually made one of our employees cry.
