A usage without basis

This has turned into one of my pet peeves, along with the use of post as a preposition. I am talking about the increasing trend of writing basis instead of on the basis of or based on, as has been done in the following examples:

Employees will have to evaluate which regime works for them, basis the amount of deductions / exemptions they wish to claim. (The Economic Times)

The premium rates will vary basis the sum assured option chosen by the policyholder. (maxlifeinsurance.com)

The supply chains need to have a different treatment everywhere basis the nature of work: Ms Alka Nangia Arora, JS, @minmsme at FICCI - UN Women D&I Webinar on 'Impact of COVID-19 on Women in Supply Chains'. pic.twitter.com/kChKInCQlZ

— FICCI (@ficci_india) April 27, 2020

Hi Manoj,for your query regarding incorrect deduction from your wallet for amount of Rs 125/- Please note that as defined by the FASTag regulatory body, Toll plaza may take 20 calendar days to either accept or reject the dispute basis the outcome of their internal investigation.

— Paytm Bank Care (@paytmbankcare) April 27, 2020

Dear Rahul,
Stem cells hold potential to treat COVID-19 basis the current human clinical trials around the world. However, these are still early days to conclude anything at this point of time.
You may visit our website: https://t.co/FIQJdTPkPl

— LifeCell International (@Lifecellint) April 27, 2020

Rather than calculating infection rate basis the population, why not calculate on basis the Total tests conducted.

— टरबूज मामु (@80hrCM) April 26, 2020

Should teenagers propose?

In Indian English, teenagers often talk of proposing to someone when they mean to ask someone out on a date or declare their fondness for that person.

Not so in standard English, where to propose (in the intransitive sense, i.e. when the verb doesn't have a direct object) only means 'to make an offer of marriage to someone'.

https://www.lexico.com/definition/propose

https://www.merriam-webster.com/dictionary/propose