Is a score of 2 out of 5 acceptable for a town council with an annual breakdown rate of four times per lift?

Irate residents query lift breakdowns
I refer to the article “Irate residents query manufacturer about lift breakdowns” (Straits Times, Apr 9).
It states that “Mrs Teo also said the performance of the lifts serving the three 40-storey Natura Loft blocks was unacceptable. With 5.2 breakdowns per lift per year, it fared worse than other estates in the GRC with similar high-speed lifts.
4 breakdowns per lift per year?
“We want to bring this number down to four breakdowns per lift per year, which is on par with the rest of the lifts in the GRC. I believe it can be done,” said Mrs Teo.
Each time there is a breakdown, the lift can take over a week to repair. One lift at Block 275 has been decommissioned since February.
But she said the data does not suggest that the Sigma lifts need replacing right away as the breakdown rate was not of “an order of magnitude of difference” from the average lift.”
Town councils’ lift performance scoring?
According to towncouncils.sg – TCMR Scoring Methodology – Lift Performance – Lift breakdown rate [5 points] –

Point Score for Bishan-Toa Payoh GRC lift scoring is 2?
As Mrs Teo is quoted to state that the GRC is having four breakdowns per lift per year, so what is the current score for the town council?
If we were to take four breakdowns per year x ten lifts divided by 12 months x 10, we get a score of 3.33. Translate to the score points system, we get a score of two.
So, does it mean that the point score for Bishan-Toa Payoh GRC with four breakdowns per year is a mere 2?
2 out of 5 is OK?
Are we saying that a score of 2 on a 5 to 1 scale is acceptable and can be considered an acceptable benchmark for lifts’ breakdown performance?
2 vs 4 (average for all town councils)?
Also, does it mean that the score for this cluster of blocks in Bishan-Toa Payoh GRC, is below the score of 2 and way below “the current average lift breakdown rate per 10 lifts (4 points)”?